Helicone
Maintenance mode since 2026-03-03 (Mintlify); site now says 'no longer part of Mintlify'. Runner-up only, not a pick.
In maintenance mode since 2026-03-03 per Mintlify's acquisition post (https://www.mintlify.com/blog/mintlify-acquires-helicone); helicone.ai now shows 'Helicone is no longer part of Mintlify. Details to come soon.' (re-checked 2026-10-21). Replaced as the cost-monitoring and llm-rate-limit-shield pick on 2026-10-21 (by Langfuse and Cloudflare AI Gateway); kept as a runner-up with the maintenance_mode flag. Former description: Fastest observability win for OpenAI-compat stacks. Put Helicone in front, ask questions later. Strengths: Drop-in proxy for OpenAI-compat providers; Cost and latency analytics; Fast to adopt.
Lock-in risk: higher = more lock-in (worse). Overall already inverts this dimension.
Fastest observability win for OpenAI-compat stacks. Put Helicone in front, ask questions later.
Strengths
- · Drop-in proxy for OpenAI-compat providers
- · Cost and latency analytics
- · Fast to adopt
Weaknesses
- · Deeper agent-graph evals behind Braintrust/LangSmith
- · Proxy hop considerations
- · Feature race with peers
Pricing notes
Proxy/gateway logging; usage-based plans from low tens of $/mo; open-source components.
Sourced pricing
Contract status unavailable · no_sourced_price. Single normalized $/1M: null. Machine list: /api/pricing?provider=helicone
No sourced SKU row. Notes above stay prose.
Community signals
Insight claims only — never mutate official scores. Outside reports: 0; seed examples: 0.
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