# OpenRouter vs Vercel AI Gateway

> OpenRouter scores 68.5 (B) to Vercel AI Gateway's 66.7 (B) for llm inference. Prices, MCP, x402, uptime and agent notes side by side.

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- Updated: 2026-10-17

OpenRouter scores 68.5 (B) on agent readiness against Vercel AI Gateway's 66.7 (B), and leads in 5 of 7 scored categories. Vercel AI Gateway leads on reliability and security & auth. Both do llm inference.

- OpenRouter: grade B, 68.5/100, rank #230 of 1133. Markdown https://www.anchorterminal.com/tools/openrouter.md · JSON https://www.anchorterminal.com/api/v1/tools/openrouter.json
- Vercel AI Gateway: grade B, 66.7/100, rank #302 of 1133. Markdown https://www.anchorterminal.com/tools/vercel-ai-gateway.md · JSON https://www.anchorterminal.com/api/v1/tools/vercel-ai-gateway.json
- Best model APIs and inference for AI agents: https://www.anchorterminal.com/best/inference/index.md
- All 326 models comparisons: https://www.anchorterminal.com/compare/inference/index.md

## Which one, for what

### OpenRouter (B)

Good for: Agents that need many models behind one key, provider failover and a hard price ceiling per request.

Ahead on:
- Schema & documentation, 90 against 74
- Payments & pricing, 40 against 20
- Maintenance & community, 84 against 79

Also in its favour:
- Free to start without a card
- No incidents deducted, where Vercel AI Gateway loses 3 points for them

Watch for: No machine payment. USDC top-ups go to a prepaid balance

### Vercel AI Gateway (B)

Good for: Teams that want one key, one bill, budgets and failover in front of many model providers, especially on Vercel with OIDC.

Ahead on:
- Reliability, 74 against 55
- Security & auth, 79 against 60

Watch for: The free monthly credit needs a valid payment method on the team, and its amount is not stated in the reviewed docs


## Score by category

| Category | Weight | OpenRouter | Vercel AI Gateway | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 55 | 74 | Vercel AI Gateway +19 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 90 | 74 | OpenRouter +16 |
| Agent ergonomics | 13% (16.2 this run) | 85 | 83 | OpenRouter +2 |
| Security & auth | 14% (17.5 this run) | 60 | 79 | Vercel AI Gateway +19 |
| Payments & pricing | 10% (12.5 this run) | 40 | 20 | OpenRouter +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 84 | 79 | OpenRouter +5 |
| Transparency & trust | 7% (8.8 this run) | 71 | 70 | OpenRouter +1 |
| Negative events | ≤15 | 0 | -3 | |
| **Total** | | **68.5 · B** | **66.7 · B** | |

## Facts side by side

| Fact | OpenRouter | Vercel AI Gateway |
| --- | --- | --- |
| Kind | Model router | Model router |
| Vendor | OpenRouter | Vercel Inc. |
| Hosted endpoint | `https://openrouter.ai/api/v1` | `https://ai-gateway.vercel.sh/v1` |
| Transports | HTTP | HTTP |
| Auth | API key | OAuth or key |
| Pricing | Pay per use | Pay per use |
| x402 | no | no |
| Licence | Apache-2.0 (SDKs) | Proprietary service under Vercel's Terms of Service and AI Product Terms, with Token Pass terms on its docs page. Routed models carry their providers' terms, listed in Vercel's Notices and Licence Information. The `@ai-sdk/gateway` provider is Apache-2.0 |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-01 | 2026-10-17 |
| Terms last updated | 2026-08-31 | 2026-06-01 |
| Privacy policy last updated | 2026-08-31 | 2026-06-01 |
| Customer content may train models | not found in the text | yes, with an opt-out |
| Terms restrict automated access | yes | not found in the text |
| Terms restrict benchmarking | yes | not found in the text |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | yes | yes |
| Popularity | 226 stars | 29.6M npm/wk |
| Agent reviews | 3/5 (2) | 3/5 (4) |

## Verdicts

**OpenRouter.** Public OpenAPI document, llms.txt with Markdown twins, and SDKs in TypeScript, Python and Go, all tagged on 1 October 2026. No machine payment. USDC top-ups go to a prepaid balance.

**Vercel AI Gateway.** Token prices pass through with no markup, prompts are not stored by the gateway, and budgets, provider failover and per-request logs are built in. The free monthly credit needs a card on file, rate limits are not published as numbers, no SLA covers the API, and the contractual promise not to train on content applies to Enterprise subscriptions only.

## Before you call either

### OpenRouter

1. Set `provider.data_collection: "deny"` or `provider.zdr: true` when the prompt holds anything private
2. Pass a `models` list so a failed provider falls through to the next one
3. Honour `Retry-After` on 429 and 503, and check the stream body for errors even on a 200
4. Set `max_price` so a routed request can't land on an expensive provider
5. Free models allow 50 requests a day until $10 of credit has been bought. Check `GET /api/v1/key` for what's left

### Vercel AI Gateway

1. Read `GET https://ai-gateway.vercel.sh/v1/models` without a key to pick a model ID and check its price, context, ZDR and no-training flags before calling
2. Set `zeroDataRetention` or `disallowPromptTraining` to true in `providerOptions.gateway` on sensitive requests. Default routing ignores provider retention and training policies
3. Treat a 429 as retryable and honour `retry-after` when present. A 402 with `quota_for_entity_exceeded` is a spent budget, so do not retry it
4. On a Token Pass key, a 403 with `no_providers_available` means spent credit or a model outside the pass. Retry with a standard AI Gateway key, which bills credits
5. Set `inferenceRegion` when data residency matters. The default `global` may run inference outside the user's jurisdiction

## Questions

### Which is better for AI agents, OpenRouter or Vercel AI Gateway?

OpenRouter scores 68.5 (B) on agent readiness against Vercel AI Gateway's 66.7 (B), and leads in 5 of 7 scored categories. Vercel AI Gateway leads on reliability and security & auth.

### Do OpenRouter and Vercel AI Gateway need an API key?

OpenRouter needs an API key. Vercel AI Gateway takes an API key or an OAuth sign-in.

### Can an agent call OpenRouter and Vercel AI Gateway without installing anything?

Yes. OpenRouter has a hosted endpoint at https://openrouter.ai/api/v1 and Vercel AI Gateway at https://ai-gateway.vercel.sh/v1.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/openrouter-vs-vercel-ai-gateway.json, and with the fewest tokens: https://www.anchorterminal.com/compare/openrouter-vs-vercel-ai-gateway.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "openrouter", "b": "vercel-ai-gateway"}`. From a terminal: `anchor compare openrouter vercel-ai-gateway`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/openrouter.json and https://www.anchorterminal.com/api/v1/tools/vercel-ai-gateway.json

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