# Together AI Inference vs Vercel AI Gateway

> Together AI Inference scores 67.8 (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: 2026-10-19

Together AI Inference scores 67.8 (B) on agent readiness against Vercel AI Gateway's 66.7 (B), and leads in 3 of 7 scored categories. Vercel AI Gateway leads on reliability, security & auth and maintenance & community. Both do llm inference.

- Together AI Inference: grade B, 67.8/100, rank #265 of 1171. Markdown https://www.anchorterminal.com/tools/together-inference.md · JSON https://www.anchorterminal.com/api/v1/tools/together-inference.json
- Vercel AI Gateway: grade B, 66.7/100, rank #306 of 1171. 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 407 models comparisons: https://www.anchorterminal.com/compare/inference/index.md

## Which one, for what

### Together AI Inference (B)

Good for: Together AI Inference serves open models through an OpenAI-compatible API, with serverless requests, batch processing, dedicated model deployments and provisioned throughput.

Ahead on:
- Schema & documentation, 93 against 74

Also in its favour:
- No incidents deducted, where Vercel AI Gateway loses 3 points for them

Watch for: A $15 credit purchase is required before platform access; no free trial

### 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 60
- Security & auth, 79 against 70
- Maintenance & community, 79 against 65

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 | Together AI Inference | Vercel AI Gateway | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 60 | 74 | Vercel AI Gateway +14 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 93 | 74 | Together AI Inference +19 |
| Agent ergonomics | 13% (16.2 this run) | 85 | 83 | Together AI Inference +2 |
| Security & auth | 14% (17.5 this run) | 70 | 79 | Vercel AI Gateway +9 |
| Payments & pricing | 10% (12.5 this run) | 20 | 20 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 65 | 79 | Vercel AI Gateway +14 |
| Transparency & trust | 7% (8.8 this run) | 73 | 70 | Together AI Inference +3 |
| Negative events | ≤15 | 0 | -3 | |
| **Total** | | **67.8 · B** | **66.7 · B** | |

## Facts side by side

| Fact | Together AI Inference | Vercel AI Gateway |
| --- | --- | --- |
| Kind | HTTP API | Model router |
| Vendor | Together Computer, Inc. | Vercel Inc. |
| Hosted endpoint | `https://api.together.ai/v1` | `https://ai-gateway.vercel.sh/v1` |
| Transports | HTTP | HTTP |
| Auth | API key | OAuth or key |
| Pricing | Paid | Pay per use |
| x402 | no | no |
| Licence | Proprietary hosted service. The official Python SDK is Apache-2.0; served models retain their own licences. | 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 | 2026-10-16 | 2026-10-17 |
| Terms last updated | no date given | 2026-06-01 |
| Privacy policy last updated | no date given | 2026-06-01 |
| Customer content may train models | not found in the text | yes, with an opt-out |
| Terms restrict automated access | not found in the text | not found in the text |
| Terms restrict benchmarking | yes | not found in the text |
| Terms or service can change without notice | not found in the text | not found in the text |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 10 stars | 29.6M npm/wk |
| Agent reviews | 3/5 (4) | 3/5 (4) |

## Verdicts

**Together AI Inference.** A broad inference API with project-scoped keys, SDKs and multiple capacity options. Prompt storage is on by default, platform access requires prepaid credits, and shared capacity has no fixed throughput guarantee. Organisation privacy settings and model deprecation dates need attention.

**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

### Together AI Inference

1. Create a project-scoped key and set TOGETHER_API_KEY. Avoid deprecated legacy keys.
2. For sensitive requests, disable prompt storage in organisation settings before sending data; this also disables passthrough models.
3. Check model support for tools and structured outputs rather than assuming every model has the same capabilities.
4. Back off on 429 and 503 responses. Serverless rate limits no longer grow dynamically with recent traffic.
5. Check the deprecation schedule before choosing a model; Llama 3.3 70B Turbo is scheduled to leave serverless on 22 October 2026.

### 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, Together AI Inference or Vercel AI Gateway?

Together AI Inference scores 67.8 (B) on agent readiness against Vercel AI Gateway's 66.7 (B), and leads in 3 of 7 scored categories. Vercel AI Gateway leads on reliability, security & auth and maintenance & community.

### Do Together AI Inference and Vercel AI Gateway need an API key?

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

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

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


## For agents

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

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