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Head to head · LLM inference · October 2026 research run

Cloudflare Workers AI vs 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. Both do llm inference.

Best model APIs and inference for AI agents · All 136 models comparisons

Cloudflare Workers AICloudflare, Inc. · Model API B68.3/100#224 of 950 Cohere Chat API (Command models)Cohere · Model API B64.7/100#342 of 950

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

CategoryWeight this runCloudflare Workers AICohere Chat API (Command models)Edge
Reliability16%206664Cloudflare Workers AI +2
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28084Cohere Chat API (Command models) +4
Agent ergonomics13%16.27572Cloudflare Workers AI +3
Security & auth14%17.57757Cloudflare Workers AI +20
Payments & pricing10%12.55230Cloudflare Workers AI +22
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.87272even
Transparency & trust7%8.87674Cloudflare Workers AI +2
Negative events≤15-30
Total68.3 · B64.7 · B

Facts side by side

FactCloudflare Workers AICohere Chat API (Command models)
KindModel APIModel API
VendorCloudflare, Inc.Cohere
Hosted endpointhttps://api.cloudflare.com/client/v4/accounts/{account_id}/aihttps://api.cohere.com/v2/chat
TransportsHTTPHTTP
AuthAPI keyAPI key
PricingFreemiumFreemium
x402payer tooling onlyno
LicenceProprietary 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-ClauseProprietary service under Cohere's Commercial SaaS Agreement. The SDKs are MIT
Read-only variant documentednono
llms.txtyesyes
Last release2026-10-012026-09-09
Terms last updated2025-09-122025-04-08
Privacy policy last updatedno date given2026-05-01
Customer content may train modelsnot found in the textyes
Terms restrict automated accessyesnot found in the text
Terms restrict benchmarkingnot found in the textyes
Terms or service can change without noticeyesyes
Arbitration or class-action waiveryesnot found in the text
Popularity380k npm/wknone

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.

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

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