OpenRouter vs Google Vertex AI for Multi-provider model routing (Oct 2026)
Depot Pick for this job: OpenRouter. Google Vertex AI is a ranked runner-up. Both have a sourced price in usd_per_million_input_tokens, so this comparison is like for like on price. Prices are each provider's lowest sourced SKU in that unit only (no blending across units, input/output or context tiers), not quality-adjusted.
Scores as of 2026-09-14 / 2026-09-14 (43 / 43 days; stale after 30). Prices carry their own dates.
| OpenRouter (Depot Pick) | Google Vertex AI | |
|---|---|---|
| Job-weighted overall | 8.00 | 7.96 |
| Capability fit | 8.8 | 9 |
| Price / performance | 7.8 | 7 |
| Latency / reliability | 7.6 | 9 |
| Developer & agent DX | 9.2 | 7.2 |
| Privacy / data retention | 6.8 | 8.8 |
| Lock-in risk (higher = worse) | 4 | 7.5 |
| Maturity / track record | 7.8 | 9.6 |
| Lowest sourced SKU (usd_per_million_input_tokens) | $2 (anthropic/claude-sonnet-5.5) source · as of 2026-10-03 · re-checked 2026-10-27 | $0.25 (Gemini 3.1 Flash-Lite) source · as of 2026-10-03 · re-checked 2026-10-27 |
| Free option for this job | OpenRouter :free variants and openrouter/free (free) — source | none listed |
| Score kind / confidence | curated_estimate / high | curated_estimate / high |
When not to use OpenRouter
Need a single-vendor enterprise SLA — pin Anthropic/OpenAI or use Bedrock/Vertex as the governed router.
Lock-in
Stored lock-in risk (0–10, higher = more lock-in): OpenRouter 4, Google Vertex AI 7.5. Self-host fallback for this job: LiteLLM.
Agents: GET /api/compare?providers=openrouter,vertex-ai&jtbd=multi-model-router · full job page · methodology