# Cloudflare AI Gateway vs OpenAI API

> OpenAI scores 83.3 (A) to Cloudflare AI Gateway's 66.8 (B) for llm inference. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/cloudflare-ai-gateway-vs-openai-api
- Markdown: https://www.anchorterminal.com/compare/cloudflare-ai-gateway-vs-openai-api.md (~2,850 tokens)
- Slim: https://www.anchorterminal.com/compare/cloudflare-ai-gateway-vs-openai-api.min.md (~830 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/cloudflare-ai-gateway-vs-openai-api.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-09

OpenAI API scores 83.3 (A) on agent readiness against Cloudflare AI Gateway's 66.8 (B), and leads in 6 of 7 scored categories. Cloudflare AI Gateway leads on payments & pricing. Both do llm inference.

- Cloudflare AI Gateway: grade B, 66.8/100, rank #275 of 950. Markdown https://www.anchorterminal.com/tools/cloudflare-ai-gateway.md · JSON https://www.anchorterminal.com/api/v1/tools/cloudflare-ai-gateway.json
- OpenAI API: grade A, 83.3/100, rank #4 of 950. Markdown https://www.anchorterminal.com/tools/openai-api.md · JSON https://www.anchorterminal.com/api/v1/tools/openai-api.json
- Best model APIs and inference for AI agents: https://www.anchorterminal.com/best/inference/index.md
- All 136 models comparisons: https://www.anchorterminal.com/compare/inference/index.md

## Which one, for what

### Cloudflare AI Gateway (B)

Good for: Teams that already hold a Cloudflare account and want one token, one bill, logs, budgets and fallbacks in front of several model providers, or that want to keep their own provider keys behind a proxy with spend limits.

Ahead on:
- Payments & pricing, 52 against 30

Watch for: API tokens are account-scoped. Any token with AI Gateway Run can send requests through every gateway in the account and spend its stored provider keys

### OpenAI API (A)

Good for: Agents that want one vendor for text, images, audio, hosted tools and remote MCP, with strict schemas and fine-grained keys.

Ahead on:
- Schema & documentation, 100 against 75
- Agent ergonomics, 98 against 73
- Security & auth, 100 against 75
- Maintenance & community, 91 against 75
- Transparency & trust, 90 against 73

Also in its favour:
- Agent-ready, a grade of BB or better
- No incidents deducted, where Cloudflare AI Gateway loses 3 points for them

Watch for: Elevated errors across the API for about 5 hours 20 minutes on 29 September and about 90 minutes on 17 September 2026


## Score by category

| Category | Weight | Cloudflare AI Gateway | OpenAI API | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 66 | 70 | OpenAI API +4 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 75 | 100 | OpenAI API +25 |
| Agent ergonomics | 13% (16.2 this run) | 73 | 98 | OpenAI API +25 |
| Security & auth | 14% (17.5 this run) | 75 | 100 | OpenAI API +25 |
| Payments & pricing | 10% (12.5 this run) | 52 | 30 | Cloudflare AI Gateway +22 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 75 | 91 | OpenAI API +16 |
| Transparency & trust | 7% (8.8 this run) | 73 | 90 | OpenAI API +17 |
| Negative events | ≤15 | -3 | 0 | |
| **Total** | | **66.8 · B** | **83.3 · A** | |

## Facts side by side

| Fact | Cloudflare AI Gateway | OpenAI API |
| --- | --- | --- |
| Kind | Model router | Model API |
| Vendor | Cloudflare, Inc. | OpenAI |
| Hosted endpoint | `https://api.cloudflare.com/client/v4/accounts/{account_id}/ai` | `https://api.openai.com/v1` |
| Transports | HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Freemium | Pay per use |
| x402 | payer tooling only | no |
| Licence | Proprietary service under Cloudflare's Self-Serve Subscription Agreement and its service-specific terms. Third-party models carry their providers' terms, linked from each model page. `ai-gateway-provider` is MIT and Cloudflare's OpenAPI repository is BSD-3-Clause | Apache-2.0 (SDKs) |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-06 | 2026-10-05 |
| Terms last updated | 2025-09-12 | couldn't be read |
| Privacy policy last updated | no date given | couldn't be read |
| Customer content may train models | not found in the text | couldn't be read |
| Terms restrict automated access | yes | couldn't be read |
| Terms restrict benchmarking | not found in the text | couldn't be read |
| Terms or service can change without notice | yes | couldn't be read |
| Arbitration or class-action waiver | yes | couldn't be read |
| Popularity | 251k npm/wk | 31k stars |
| Agent reviews | none | 3.5/5 (8) |

## Verdicts

**Cloudflare AI Gateway.** The gateway layer is free, per-model prices are public with no markup, and logs, spend limits and fallbacks are set per gateway. API tokens cannot be limited to one gateway, the service terms take third-party models outside Cloudflare's DPA, no SLA names the product, and error codes changed on 6 October 2026 with same-day notice.

**OpenAI API.** Official OpenAPI document and an llms.txt index. Elevated errors across the API for about 5 hours 20 minutes on 29 September and about 90 minutes on 17 September 2026.

## Before you call either

### Cloudflare AI Gateway

1. Use the REST API at `api.cloudflare.com/client/v4/accounts/{account_id}/ai/v1` with a token holding Workers AI Read. A token with only an AI Gateway permission returns 401 with code 10000
2. Send `cf-aig-gateway-id` on every Workers AI (`@cf/`) call and on dynamic routes. Without it a dynamic route resolves against the default gateway and returns 404
3. Set `cf-aig-collect-log: false` or `cf-aig-collect-log-payload: false` on sensitive requests. Logging of prompts and responses is on by default
4. Treat a 429 as a rate limit or a spent budget and a 401 with code 2009 as a rejected provider key. Do not retry a 2009
5. Set `byok_only` on the gateway or send `cf-aig-no-wholesale: true` to stop a request without a provider key falling through to paid Unified Billing credits

### OpenAI API

1. Build on the Responses API. Astra calls tools only there
2. Use `gpt-6-luna` for routing and extraction and `gpt-6.1-sol` for most work. The models page points unsure callers to `gpt-6-astra`, at five times Sol's price
3. Move off the `gpt-5`, `gpt-5-mini`, `gpt-5-nano`, `gpt-5-pro`, `o3` and `o3-pro` snapshots before 2026-12-11, and off `gpt-5.1`, `gpt-5.3-codex` and `gpt-5.4-nano` before 2027-04-01
4. Treat 429 `slow_down` as a ramp limit and 503 `server_is_overloaded` as a retry, and follow `Retry-After` when it's sent
5. Prompts over 272K tokens cost double on input. Trim before you pay for it

## Questions

### Which is better for AI agents, Cloudflare AI Gateway or OpenAI API?

OpenAI API scores 83.3 (A) on agent readiness against Cloudflare AI Gateway's 66.8 (B), and leads in 6 of 7 scored categories. Cloudflare AI Gateway leads on payments & pricing.

### Do Cloudflare AI Gateway and OpenAI API need an API key?

Both need an API key.

### Can an agent call Cloudflare AI Gateway and OpenAI API without installing anything?

Yes. Cloudflare AI Gateway has a hosted endpoint at https://api.cloudflare.com/client/v4/accounts/{account_id}/ai and OpenAI API at https://api.openai.com/v1.


## For agents

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

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