{"subject":{"id":"langfuse","slug":"langfuse","name":"Langfuse","tagline":"Depot default observability for most agent teams: open, affordable, good enough to serious.","website":"https://langfuse.com","status":"active","overall":8.66,"scoreKind":"curated_estimate","confidence":"high","scoreAsOf":"2026-09-14","lastReviewed":"2026-09-14","categoryIds":["cat-observability"],"regions":["eu","global"],"pricing":{"normalizedUsdPerMillionTokens":null,"normalizationStatus":"unavailable","normalizationReason":"no_sourced_price","shape":"prose_notes_only","filterable":false,"priceSortEligible":false,"priceSortKeyUsdPerMillionInputTokens":null,"rows":[],"notesExcerpt":"Open-source + cloud; generous self-host; cloud from ~$29–59/mo tiers; EU-friendly.","notesCheck":{"status":"no_known_contradiction","pairs":[],"review":null,"note":null},"lastReviewed":"2026-09-14","scoreAsOf":"2026-09-14","website":"https://langfuse.com","doNotParse":"Do not parse pricingNotes. Use rows only. normalizedUsdPerMillionTokens is a single number only when this provider has exactly one sourced token row. Input/output, context tiers, and non-token units stay null at this level.","gap":"No sourced price row for this provider. pricingNotes stay prose. See research/gaps.md."}},"relatedJtbdSlugs":["llm-tracing","evals","cost-monitoring","experiment-tracking","infra-observability","progressive-agent-rollout","agent-cloud-finops","llm-audit-log-warehouse","llm-cost-anomaly-alerts","agent-trace-session-replay","ml-dataset-versioning"],"alternatives":[{"id":"braintrust","slug":"braintrust","name":"Braintrust","tagline":"Depot pick when evals are the product quality gate. Pair with Helicone/Langfuse for cheap request logs if…","website":"https://www.braintrust.dev","status":"active","overall":8.23,"scoreKind":"curated_estimate","confidence":"high","scoreAsOf":"2026-10-19","deltaOverallVsSubject":-0.43,"roles":["same_jtbd_pick","same_jtbd_runner"],"sharedJtbdSlugs":["evals","progressive-agent-rollout","agent-trace-session-replay","ml-dataset-versioning"],"pricing":{"normalizedUsdPerMillionTokens":null,"normalizationStatus":"unavailable","normalizationReason":"no_sourced_price","shape":"prose_notes_only","filterable":false,"priceSortEligible":false,"priceSortKeyUsdPerMillionInputTokens":null,"rows":[],"notesExcerpt":"Eval-first platform; data-based pricing with unlimited seats on many plans; strong CI eval story.","notesCheck":{"status":"no_known_contradiction","pairs":[],"review":null,"note":null},"lastReviewed":"2026-10-19","scoreAsOf":"2026-10-19","website":"https://www.braintrust.dev","doNotParse":"Do not parse pricingNotes. Use rows only. normalizedUsdPerMillionTokens is a single number only when this provider has exactly one sourced token row. Input/output, context tiers, and non-token units stay null at this level.","gap":"No sourced price row for this provider. pricingNotes stay prose. See research/gaps.md."},"decideHint":"/api/decide?jtbd=evals","human":"/providers/braintrust","compare":"/compare/langfuse-vs-braintrust"},{"id":"langsmith","slug":"langsmith","name":"LangSmith","tagline":"If you live in LangGraph, LangSmith is the obvious observatory. Otherwise compare Langfuse/Helicone first.","website":"https://www.langchain.com/langsmith","status":"active","overall":8.09,"scoreKind":"curated_estimate","confidence":"high","scoreAsOf":"2026-09-14","deltaOverallVsSubject":-0.57,"roles":["same_jtbd_runner","same_jtbd_pick"],"sharedJtbdSlugs":["llm-tracing","evals","agent-trace-session-replay","ml-dataset-versioning"],"pricing":{"normalizedUsdPerMillionTokens":null,"normalizationStatus":"unavailable","normalizationReason":"no_sourced_price","shape":"prose_notes_only","filterable":false,"priceSortEligible":false,"priceSortKeyUsdPerMillionInputTokens":null,"rows":[],"notesExcerpt":"Seat + trace volume pricing; deep LangChain/LangGraph integration; Plus tiers from tens of $/mo.","notesCheck":{"status":"no_known_contradiction","pairs":[],"review":null,"note":null},"lastReviewed":"2026-09-14","scoreAsOf":"2026-09-14","website":"https://www.langchain.com/langsmith","doNotParse":"Do not parse pricingNotes. Use rows only. normalizedUsdPerMillionTokens is a single number only when this provider has exactly one sourced token row. Input/output, context tiers, and non-token units stay null at this level.","gap":"No sourced price row for this provider. pricingNotes stay prose. See research/gaps.md."},"decideHint":"/api/decide?jtbd=llm-tracing","human":"/providers/langsmith","compare":"/compare/langfuse-vs-langsmith"},{"id":"vantage","slug":"vantage","name":"Vantage","tagline":"Depot pick for unified cloud+GPU+LLM FinOps. Helicone/Langfuse still own request-path token tracing; Vantage…","website":"https://www.vantage.sh","status":"active","overall":8.42,"scoreKind":"curated_estimate","confidence":"high","scoreAsOf":"2026-09-14","deltaOverallVsSubject":-0.24,"roles":["same_jtbd_runner","same_jtbd_pick"],"sharedJtbdSlugs":["cost-monitoring","agent-cloud-finops","llm-cost-anomaly-alerts"],"pricing":{"normalizedUsdPerMillionTokens":null,"normalizationStatus":"unit_mismatch","normalizationReason":"unit_mismatch","shape":"sourced_rows","filterable":false,"priceSortEligible":false,"priceSortKeyUsdPerMillionInputTokens":null,"rows":[{"id":"vantage-starter","providerId":"vantage","sku":"Starter","unit":"usd_per_month","amountUsd":0,"currency":"USD","sourceUrl":"https://www.vantage.sh/pricing","asOf":"2026-10-03","normalizationStatus":"unit_mismatch","normalizedUsdPerMillionTokens":null,"normalizationReason":"unit_mismatch_per_month","priceSortEligible":false,"qualifier":"Free. Tracks up to $2,500 of cloud spend. That figure is a cap, not a fee."},{"id":"vantage-pro","providerId":"vantage","sku":"Pro","unit":"usd_per_month","amountUsd":30,"currency":"USD","sourceUrl":"https://www.vantage.sh/pricing","asOf":"2026-10-03","normalizationStatus":"unit_mismatch","normalizedUsdPerMillionTokens":null,"normalizationReason":"unit_mismatch_per_month","priceSortEligible":false,"qualifier":"Up to $7,500 of tracked cloud spend. The spend cap is not a fee."},{"id":"vantage-business","providerId":"vantage","sku":"Business","unit":"usd_per_month","amountUsd":200,"currency":"USD","sourceUrl":"https://www.vantage.sh/pricing","asOf":"2026-10-03","normalizationStatus":"unit_mismatch","normalizedUsdPerMillionTokens":null,"normalizationReason":"unit_mismatch_per_month","priceSortEligible":false,"qualifier":"Up to $20,000 of tracked cloud spend. The spend cap is not a fee."}],"notesExcerpt":"As of 2026-10-24 (vantage.sh/pricing, fetched 2026-10-24): 'Simple, Fixed Pricing'. Starter 'Free' with '$2,500 of cloud spend' and '3 Users'; Pro '$30 /month' with '$7,500 of cloud spend' and '5 Users'; Business '$200 /month' with '$20,000 of cloud spend' and '10 Users' (Pro and…","notesCheck":{"status":"no_known_contradiction","pairs":[],"review":null,"note":null},"lastReviewed":"2026-09-14","scoreAsOf":"2026-09-14","website":"https://www.vantage.sh","doNotParse":"Do not parse pricingNotes. Use rows only. normalizedUsdPerMillionTokens is a single number only when this provider has exactly one sourced token row. Input/output, context tiers, and non-token units stay null at this level.","gap":"Partial coverage. Providers without a fetched SKU are omitted. See GET /api/pricing."},"decideHint":"/api/decide?jtbd=cost-monitoring","human":"/providers/vantage","compare":"/compare/langfuse-vs-vantage"},{"id":"honeycomb","slug":"honeycomb","name":"Honeycomb","tagline":"When your agent outage is an infra mystery, Honeycomb shines. Still pair with an LLM-native tracer for…","website":"https://www.honeycomb.io","status":"active","overall":8.13,"scoreKind":"curated_estimate","confidence":"high","scoreAsOf":"2026-09-14","deltaOverallVsSubject":-0.53,"roles":["same_jtbd_pick","same_jtbd_runner"],"sharedJtbdSlugs":["infra-observability","llm-audit-log-warehouse","agent-trace-session-replay"],"pricing":{"normalizedUsdPerMillionTokens":null,"normalizationStatus":"unavailable","normalizationReason":"no_sourced_price","shape":"prose_notes_only","filterable":false,"priceSortEligible":false,"priceSortKeyUsdPerMillionInputTokens":null,"rows":[],"notesExcerpt":"Event-based observability pricing; excellent high-cardinality querying; not LLM-specialized.","notesCheck":{"status":"no_known_contradiction","pairs":[],"review":null,"note":null},"lastReviewed":"2026-09-14","scoreAsOf":"2026-09-14","website":"https://www.honeycomb.io","doNotParse":"Do not parse pricingNotes. Use rows only. normalizedUsdPerMillionTokens is a single number only when this provider has exactly one sourced token row. Input/output, context tiers, and non-token units stay null at this level.","gap":"No sourced price row for this provider. pricingNotes stay prose. See research/gaps.md."},"decideHint":"/api/decide?jtbd=infra-observability","human":"/providers/honeycomb","compare":"/compare/langfuse-vs-honeycomb"},{"id":"weights-biases","slug":"weights-biases","name":"Weights & Biases","tagline":"Use for training/fine-tune discipline. For pure agent request tracing, Langfuse/Helicone are leaner.","website":"https://wandb.ai","status":"active","overall":8.04,"scoreKind":"curated_estimate","confidence":"high","scoreAsOf":"2026-09-14","deltaOverallVsSubject":-0.62,"roles":["same_jtbd_pick"],"sharedJtbdSlugs":["experiment-tracking","ml-dataset-versioning"],"pricing":{"normalizedUsdPerMillionTokens":null,"normalizationStatus":"unavailable","normalizationReason":"no_sourced_price","shape":"prose_notes_only","filterable":false,"priceSortEligible":false,"priceSortKeyUsdPerMillionInputTokens":null,"rows":[],"notesExcerpt":"Experiment tracking + W&B Weave/LLM tools; seat and usage based; free tiers for individuals.","notesCheck":{"status":"no_known_contradiction","pairs":[],"review":null,"note":null},"lastReviewed":"2026-09-14","scoreAsOf":"2026-09-14","website":"https://wandb.ai","doNotParse":"Do not parse pricingNotes. Use rows only. normalizedUsdPerMillionTokens is a single number only when this provider has exactly one sourced token row. Input/output, context tiers, and non-token units stay null at this level.","gap":"No sourced price row for this provider. pricingNotes stay prose. See research/gaps.md."},"decideHint":"/api/decide?jtbd=experiment-tracking","human":"/providers/weights-biases","compare":"/compare/langfuse-vs-weights-biases"},{"id":"clickhouse-cloud","slug":"clickhouse-cloud","name":"ClickHouse Cloud","tagline":"Depot pick for agent-analytics-warehouse (event/log OLAP). MotherDuck remains sql-warehouse-agent-context for…","website":"https://clickhouse.com","status":"active","overall":8.38,"scoreKind":"curated_estimate","confidence":"high","scoreAsOf":"2026-10-19","deltaOverallVsSubject":-0.28,"roles":["same_jtbd_pick"],"sharedJtbdSlugs":["llm-audit-log-warehouse"],"pricing":{"normalizedUsdPerMillionTokens":null,"normalizationStatus":"unavailable","normalizationReason":"no_sourced_price","shape":"prose_notes_only","filterable":false,"priceSortEligible":false,"priceSortKeyUsdPerMillionInputTokens":null,"rows":[],"notesExcerpt":"As of 2026-10-24 (clickhouse.com/pricing, fetched 2026-10-24; list rates shown for 'N. Virginia (us-east-1)'): 'Pay only for the compute and storage you use, metered separately and scaled to zero when idle.' Basic: Storage '$25.30 Per 1TB / mo', Compute '$0.2181 Per unit / hr', '…","notesCheck":{"status":"no_known_contradiction","pairs":[],"review":null,"note":null},"lastReviewed":"2026-10-19","scoreAsOf":"2026-10-19","website":"https://clickhouse.com","doNotParse":"Do not parse pricingNotes. Use rows only. normalizedUsdPerMillionTokens is a single number only when this provider has exactly one sourced token row. Input/output, context tiers, and non-token units stay null at this level.","gap":"No sourced price row for this provider. pricingNotes stay prose. See research/gaps.md."},"decideHint":"/api/decide?jtbd=llm-audit-log-warehouse","human":"/providers/clickhouse-cloud","compare":"/compare/langfuse-vs-clickhouse-cloud"},{"id":"launchdarkly","slug":"launchdarkly","name":"LaunchDarkly","tagline":"Depot pick for progressive delivery of agent prompts/models/tools in production. Statsig if you want cheaper…","website":"https://launchdarkly.com","status":"active","overall":8.2,"scoreKind":"curated_estimate","confidence":"high","scoreAsOf":"2026-09-14","deltaOverallVsSubject":-0.46,"roles":["same_jtbd_pick"],"sharedJtbdSlugs":["progressive-agent-rollout"],"pricing":{"normalizedUsdPerMillionTokens":null,"normalizationStatus":"unavailable","normalizationReason":"no_sourced_price","shape":"prose_notes_only","filterable":false,"priceSortEligible":false,"priceSortKeyUsdPerMillionInputTokens":null,"rows":[],"notesExcerpt":"As of 2026-09-14 (launchdarkly.com/pricing): Developer $0 — unlimited seats, 5 service connections, 1k client MAU, 5k AI runs/mo, 14-day AgentControl retention. Foundation PAYG (yearly): $10/service connection/mo + $8.33/1k client MAU/mo; 5k AI runs included then $5/1k; 30-day re…","notesCheck":{"status":"no_known_contradiction","pairs":[],"review":null,"note":null},"lastReviewed":"2026-09-14","scoreAsOf":"2026-09-14","website":"https://launchdarkly.com","doNotParse":"Do not parse pricingNotes. Use rows only. normalizedUsdPerMillionTokens is a single number only when this provider has exactly one sourced token row. Input/output, context tiers, and non-token units stay null at this level.","gap":"No sourced price row for this provider. pricingNotes stay prose. See research/gaps.md."},"decideHint":"/api/decide?jtbd=progressive-agent-rollout","human":"/providers/launchdarkly","compare":"/compare/langfuse-vs-launchdarkly"},{"id":"arize-phoenix","slug":"arize-phoenix","name":"Arize Phoenix","tagline":"Choose Phoenix when you want open-source observability you can own. Cloud Arize when enterprise wants a…","website":"https://phoenix.arize.com","status":"active","overall":8.44,"scoreKind":"curated_estimate","confidence":"high","scoreAsOf":"2026-09-14","deltaOverallVsSubject":-0.22,"roles":["same_jtbd_runner"],"sharedJtbdSlugs":["llm-tracing","evals","experiment-tracking","infra-observability","agent-trace-session-replay"],"pricing":{"normalizedUsdPerMillionTokens":null,"normalizationStatus":"unavailable","normalizationReason":"no_sourced_price","shape":"prose_notes_only","filterable":false,"priceSortEligible":false,"priceSortKeyUsdPerMillionInputTokens":null,"rows":[],"notesExcerpt":"Open-source Phoenix free to self-host; Arize AX cloud paid; OpenTelemetry-friendly.","notesCheck":{"status":"no_known_contradiction","pairs":[],"review":null,"note":null},"lastReviewed":"2026-09-14","scoreAsOf":"2026-09-14","website":"https://phoenix.arize.com","doNotParse":"Do not parse pricingNotes. Use rows only. normalizedUsdPerMillionTokens is a single number only when this provider has exactly one sourced token row. Input/output, context tiers, and non-token units stay null at this level.","gap":"No sourced price row for this provider. pricingNotes stay prose. See research/gaps.md."},"decideHint":"/api/decide?jtbd=llm-tracing","human":"/providers/arize-phoenix","compare":"/compare/langfuse-vs-arize-phoenix"},{"id":"helicone","slug":"helicone","name":"Helicone","tagline":"Maintenance mode since 2026-03-03 (Mintlify); site now says 'no longer part of Mintlify'. Runner-up only, not a pick.","website":"https://www.helicone.ai","status":"active","overall":8.13,"scoreKind":"curated_estimate","confidence":"high","scoreAsOf":"2026-10-19","deltaOverallVsSubject":-0.53,"roles":["same_jtbd_runner"],"sharedJtbdSlugs":["llm-tracing","cost-monitoring","agent-cloud-finops","llm-cost-anomaly-alerts"],"pricing":{"normalizedUsdPerMillionTokens":null,"normalizationStatus":"unavailable","normalizationReason":"no_sourced_price","shape":"prose_notes_only","filterable":false,"priceSortEligible":false,"priceSortKeyUsdPerMillionInputTokens":null,"rows":[],"notesExcerpt":"Proxy/gateway logging; usage-based plans from low tens of $/mo; open-source components.","notesCheck":{"status":"no_known_contradiction","pairs":[],"review":null,"note":null},"lastReviewed":"2026-10-19","scoreAsOf":"2026-10-19","website":"https://www.helicone.ai","doNotParse":"Do not parse pricingNotes. Use rows only. normalizedUsdPerMillionTokens is a single number only when this provider has exactly one sourced token row. Input/output, context tiers, and non-token units stay null at this level.","gap":"No sourced price row for this provider. pricingNotes stay prose. See research/gaps.md."},"decideHint":"/api/decide?jtbd=llm-tracing","human":"/providers/helicone","compare":"/compare/langfuse-vs-helicone"},{"id":"portkey","slug":"portkey","name":"Portkey","tagline":"Depot pick for production AI gateway (fallbacks, virtual keys, budgets). OpenRouter when you want a model…","website":"https://portkey.ai","status":"active","overall":8.31,"scoreKind":"curated_estimate","confidence":"high","scoreAsOf":"2026-09-14","deltaOverallVsSubject":-0.35,"roles":["same_jtbd_runner"],"sharedJtbdSlugs":["llm-tracing","cost-monitoring","llm-cost-anomaly-alerts"],"pricing":{"normalizedUsdPerMillionTokens":null,"normalizationStatus":"unit_mismatch","normalizationReason":"unit_mismatch","shape":"sourced_rows","filterable":false,"priceSortEligible":false,"priceSortKeyUsdPerMillionInputTokens":null,"rows":[{"id":"portkey-production-usd-per-month","providerId":"portkey","sku":"Production","unit":"usd_per_month","amountUsd":49,"currency":"USD","sourceUrl":"https://portkey.ai/pricing","asOf":"2026-10-03","normalizationStatus":"unit_mismatch","normalizedUsdPerMillionTokens":null,"normalizationReason":"unit_mismatch_per_month","priceSortEligible":false,"qualifier":"Gateway plan. 100k recorded logs, then +$9 per additional 100k requests. Not a model token rate. Enterprise is custom and was omitted."}],"notesExcerpt":"As of 2026-09-14 (portkey.ai/pricing): Developer free forever (10k logs/mo, 3-day log / 30-day metrics retention). Production $49/mo (100k logs, +$9/100k overage, 30/90-day retention, guardrails, RBAC). Enterprise custom (10M+ logs, VPC, HIPAA/BAA, private cloud). OSS self-host g…","notesCheck":{"status":"no_known_contradiction","pairs":[],"review":null,"note":null},"lastReviewed":"2026-09-14","scoreAsOf":"2026-09-14","website":"https://portkey.ai","doNotParse":"Do not parse pricingNotes. Use rows only. normalizedUsdPerMillionTokens is a single number only when this provider has exactly one sourced token row. Input/output, context tiers, and non-token units stay null at this level.","gap":"Partial coverage. Providers without a fetched SKU are omitted. See GET /api/pricing."},"decideHint":"/api/decide?jtbd=llm-tracing","human":"/providers/portkey","compare":"/compare/langfuse-vs-portkey"},{"id":"comet-opik","slug":"comet-opik","name":"Comet Opik","tagline":"Pick when you already live in Comet or want OSS Opik + optional cloud. Langfuse remains cheaper OSS default…","website":"https://www.comet.com/site/products/opik/","status":"active","overall":8.04,"scoreKind":"curated_estimate","confidence":"high","scoreAsOf":"2026-09-14","deltaOverallVsSubject":-0.62,"roles":["same_jtbd_runner"],"sharedJtbdSlugs":["llm-tracing","evals","ml-dataset-versioning"],"pricing":{"normalizedUsdPerMillionTokens":null,"normalizationStatus":"unavailable","normalizationReason":"no_sourced_price","shape":"prose_notes_only","filterable":false,"priceSortEligible":false,"priceSortKeyUsdPerMillionInputTokens":null,"rows":[],"notesExcerpt":"As of 2026-09-14: Opik OSS self-host free. Comet Cloud free tier + Pro Cloud ~$19/mo class with ~100k spans / 60-day retention (confirm live comet.com/site/pricing). Fits teams already on Comet ML experiment tracking.","notesCheck":{"status":"no_known_contradiction","pairs":[],"review":null,"note":null},"lastReviewed":"2026-09-14","scoreAsOf":"2026-09-14","website":"https://www.comet.com/site/products/opik/","doNotParse":"Do not parse pricingNotes. Use rows only. normalizedUsdPerMillionTokens is a single number only when this provider has exactly one sourced token row. Input/output, context tiers, and non-token units stay null at this level.","gap":"No sourced price row for this provider. pricingNotes stay prose. See research/gaps.md."},"decideHint":"/api/decide?jtbd=llm-tracing","human":"/providers/comet-opik","compare":"/compare/langfuse-vs-comet-opik"},{"id":"logfire","slug":"logfire","name":"Pydantic Logfire","tagline":"Best when the agent is already PydanticAI/Python and you want app+LLM traces together. Langfuse stays Depot…","website":"https://pydantic.dev/logfire","status":"active","overall":8.33,"scoreKind":"curated_estimate","confidence":"high","scoreAsOf":"2026-09-14","deltaOverallVsSubject":-0.33,"roles":["same_jtbd_runner"],"sharedJtbdSlugs":["llm-tracing","evals"],"pricing":{"normalizedUsdPerMillionTokens":null,"normalizationStatus":"unavailable","normalizationReason":"no_sourced_price","shape":"prose_notes_only","filterable":false,"priceSortEligible":false,"priceSortKeyUsdPerMillionInputTokens":null,"rows":[],"notesExcerpt":"As of 2026-09-14 (pydantic.dev/pricing): Personal free — 10M records/mo hard-capped, 1 seat, 3 projects, 30d. Team $49/mo (5 seats, $25 extra, 10M then $2/M, spend cap). Growth $249/mo unlimited seats/projects, up to 90d, BAA boilerplate. Enterprise cloud/dedicated/self-host. $0/…","notesCheck":{"status":"no_known_contradiction","pairs":[],"review":null,"note":null},"lastReviewed":"2026-09-14","scoreAsOf":"2026-09-14","website":"https://pydantic.dev/logfire","doNotParse":"Do not parse pricingNotes. Use rows only. normalizedUsdPerMillionTokens is a single number only when this provider has exactly one sourced token row. Input/output, context tiers, and non-token units stay null at this level.","gap":"No sourced price row for this provider. pricingNotes stay prose. See research/gaps.md."},"decideHint":"/api/decide?jtbd=llm-tracing","human":"/providers/logfire","compare":"/compare/langfuse-vs-logfire"}],"rankContract":{"style":"editorial_weighted","notAnElo":true,"note":"deltaOverallVsSubject is Depot overall (0–10) minus the subject. It is not Arena Elo and not an Artificial Analysis index."},"freshness":{"scoreAsOfMin":"2026-09-14","scoreAsOfMax":"2026-10-19","contractAsOf":"2026-10-03"},"honesty":["Alternatives are other catalog providers that share a JTBD as pick or runner-up. If fewer than three exist, same-category active providers fill the list and are labeled same_category.","Overall deltas are catalog scores. kind=curated_estimate is not a lab measurement.","Pricing rows are sourced or explicitly null. Do not parse pricingNotes. A single normalized USD figure is set only for a provider with exactly one token row."],"links":{"human":"/alternatives/langfuse","machine":"/api/alternatives?provider=langfuse","provider":"/api/providers/langfuse","canonical":"/api/canonical"}}