# Cloudflare Workers AI vs Cohere Chat API (Command models)

> Cloudflare Workers AI scores 68.3 (B) to Cohere Chat's 64.7 (B) for llm inference. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/cloudflare-workers-ai-vs-cohere-chat
- Markdown: https://www.anchorterminal.com/compare/cloudflare-workers-ai-vs-cohere-chat.md (~2,950 tokens)
- Slim: https://www.anchorterminal.com/compare/cloudflare-workers-ai-vs-cohere-chat.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/cloudflare-workers-ai-vs-cohere-chat.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

Cloudflare Workers AI scores 68.3 (B) on agent readiness against Cohere Chat API (Command models)'s 64.7 (B), and leads in 5 of 7 scored categories. Both do llm inference.

- Cloudflare Workers AI: grade B, 68.3/100, rank #224 of 950. Markdown https://www.anchorterminal.com/tools/cloudflare-workers-ai.md · JSON https://www.anchorterminal.com/api/v1/tools/cloudflare-workers-ai.json
- Cohere Chat API (Command models): grade B, 64.7/100, rank #342 of 950. Markdown https://www.anchorterminal.com/tools/cohere-chat.md · JSON https://www.anchorterminal.com/api/v1/tools/cohere-chat.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 Workers AI (B)

Good for: Agents that already run on Cloudflare Workers, or that want open-weight chat, embedding, reranking, speech and image models behind one token with a free daily allowance.

Ahead on:
- Security & auth, 77 against 57
- Payments & pricing, 52 against 30

Watch for: No SLA for Workers AI was found in the docs or the agreements read

### Cohere Chat API (Command models) (B)

Good for: Teams that want Command models for RAG with citations, tool use and multilingual work, and that may later move to a private deployment or Model Vault.

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

Watch for: Production keys work like trial keys on Command A+, Reasoning, Translate and Vision. The docs send production use of those models to sales or to Model Vault


## Score by category

| Category | Weight | Cloudflare Workers AI | Cohere Chat API (Command models) | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 66 | 64 | Cloudflare Workers AI +2 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 80 | 84 | Cohere Chat API (Command models) +4 |
| Agent ergonomics | 13% (16.2 this run) | 75 | 72 | Cloudflare Workers AI +3 |
| Security & auth | 14% (17.5 this run) | 77 | 57 | Cloudflare Workers AI +20 |
| Payments & pricing | 10% (12.5 this run) | 52 | 30 | Cloudflare Workers AI +22 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 72 | 72 | even |
| Transparency & trust | 7% (8.8 this run) | 76 | 74 | Cloudflare Workers AI +2 |
| Negative events | ≤15 | -3 | 0 | |
| **Total** | | **68.3 · B** | **64.7 · B** | |

## Facts side by side

| Fact | Cloudflare Workers AI | Cohere Chat API (Command models) |
| --- | --- | --- |
| Kind | Model API | Model API |
| Vendor | Cloudflare, Inc. | Cohere |
| Hosted endpoint | `https://api.cloudflare.com/client/v4/accounts/{account_id}/ai` | `https://api.cohere.com/v2/chat` |
| Transports | HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Freemium | Freemium |
| x402 | payer tooling only | no |
| Licence | Proprietary service under Cloudflare's Self-Serve Subscription Agreement. Each hosted model carries its own open-weight licence, linked from its model page. The `cloudflare` SDKs are Apache-2.0, `workers-ai-provider` is MIT and the OpenAPI repository is BSD-3-Clause | Proprietary service under Cohere's Commercial SaaS Agreement. The SDKs are MIT |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-01 | 2026-09-09 |
| Terms last updated | 2025-09-12 | 2025-04-08 |
| Privacy policy last updated | no date given | 2026-05-01 |
| Customer content may train models | not found in the text | yes |
| Terms restrict automated access | yes | not found in the text |
| Terms restrict benchmarking | not found in the text | yes |
| Terms or service can change without notice | yes | yes |
| Arbitration or class-action waiver | yes | not found in the text |
| Popularity | 380k npm/wk | none |

## Verdicts

**Cloudflare Workers AI.** Per-model prices, rate limits and JSON Schemas are public, 10,000 neurons a day are free, and x402 payment is in beta on `/ai/run` for four models. No SLA was found, three models moved to paid-only access on 28 July 2026 with no notice, and several docs pages still use a model retired in May.

**Cohere Chat API (Command models).** A public OpenAPI file, Markdown twins of every docs page and SDKs in four languages make the Chat API easy for an agent to read. Production keys do not cover the four newest Command models, whose limits are set by sales, and the SaaS agreement lets Cohere share API data with third parties.

## Before you call either

### Cloudflare Workers AI

1. Check the model page before calling. Seven models need Workers Paid or AI Gateway credits and return 403 with code 5035 on the Free plan
2. Read the internal code on a 429. 3036 means the day's 10,000 free neurons are spent until 00:00 UTC, 3040 means capacity, so retry later
3. Set `options.rejectIfBusy` to fail fast, or add `?queueRequest=true` for the batch route when the answer can wait
4. Send the same `x-session-affinity` value on every turn of a session to reach the prefix cache and the cached-input price
5. Keep paid frontier models under 20 requests a minute per model, or 50 with prepaid AI Gateway credits

### Cohere Chat API (Command models)

1. Call `POST https://api.cohere.com/v2/chat` with `Authorization: bearer <key>`. `model` and `messages` are the only required fields
2. Use `command-a-03-2025`, `command-r-08-2024`, `command-r-plus-08-2024` or `command-r7b-12-2024` for production traffic. Newer variants stay at trial limits on a production key
3. Keep a trial key under 20 chat requests a minute and 1,000 calls a month, and do not use it for commercial work
4. Set `response_format` with a `json_schema` for structured output, and tell the model to produce JSON when using `json_object` without a schema
5. Ask the account Owner to turn off training under Data Controls in the dashboard before sending confidential prompts

## Questions

### Which is better for AI agents, Cloudflare Workers AI or Cohere Chat API (Command models)?

Cloudflare Workers AI scores 68.3 (B) on agent readiness against Cohere Chat API (Command models)'s 64.7 (B), and leads in 5 of 7 scored categories.

### Do Cloudflare Workers AI and Cohere Chat API (Command models) need an API key?

Both need an API key.

### Can an agent call Cloudflare Workers AI and Cohere Chat API (Command models) without installing anything?

Yes. Cloudflare Workers AI has a hosted endpoint at https://api.cloudflare.com/client/v4/accounts/{account_id}/ai and Cohere Chat API (Command models) at https://api.cohere.com/v2/chat.


## For agents

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

## Other comparisons with Cloudflare Workers AI or Cohere Chat API (Command models)

- [Claude API vs Cloudflare Workers AI](https://www.anchorterminal.com/compare/anthropic-api-vs-cloudflare-workers-ai.md)
- [Claude API vs Cohere Chat API (Command models)](https://www.anchorterminal.com/compare/anthropic-api-vs-cohere-chat.md)
- [Antseed vs Cloudflare Workers AI](https://www.anchorterminal.com/compare/antseed-vs-cloudflare-workers-ai.md)
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- [Cohere Chat API (Command models) vs DeepSeek API](https://www.anchorterminal.com/compare/cohere-chat-vs-deepseek-api.md)
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