Cohere Command A vs Grok 4
Cohere Command A is cheaper for every workload modelled here.
List prices checked
Specifications and rates
| Property | Cohere Command A | Grok 4 |
|---|---|---|
| Input per 1M | $2.50 | $3.00 |
| Output per 1M | $10.00 | $15.00 |
| Cached input per 1M | — | $0.750 |
| Blended (3:1) | $4.38 | $6.00 |
| Context window | 256K | 256K |
| Max output | — | 64K |
| Inputs accepted | text | text, image |
Source: Cohere pricing (May 2026) · xAI pricing (May 2026). Published list prices only — committed-use discounts, regional variation, and per-request charges are not included. Not yet independently re-checked against the vendor’s page.
Monthly cost by workload
Identical token volumes through both rate cards. Output-heavy profiles are where the ranking flips.
| Workload | Cohere Command A | Grok 4 | Cheaper |
|---|---|---|---|
| In-app chat assistantA support or help assistant handling a few thousand conversations a month, with short prompts and short answers. | $100 | $135 | Cohere Command Asaves $35/mo (26%) |
| RAG over documentsRetrieval-augmented answering where each request stuffs several retrieved passages into the prompt, so input dominates. | $900 | $1,125 | Cohere Command Asaves $225/mo (20%) |
| Coding agentAn agentic loop that reads files and writes patches, generating heavy output and re-sending large context on every turn. | $2,000 | $2,700 | Cohere Command Asaves $700/mo (26%) |
What each one is for
Cohere Command A
by Cohere
Cohere's enterprise flagship, built around retrieval-augmented generation and multilingual work, and sold heavily as a private deployment inside customer infrastructure.
Grok 4
by xAI
xAI's flagship, priced to match Claude Sonnet exactly, with a large context window and live access to posts on X as a differentiator.
Common questions
- Is Cohere Command A or Grok 4 cheaper in 2026?
- Cohere Command A, for every workload modelled here. On a blended 3:1 basis it costs $4.38 per million tokens against Grok 4's $6.00.
- Which has the larger context window?
- Both accept 256K tokens.
- Which is cheaper for output-heavy work like agents?
- Cohere Command A, at $10.00 per million output tokens against $15.00. Reasoning tokens bill as output, so for agentic loops this axis usually decides the invoice regardless of what the input rates look like.
- What is not included in these figures?
- Batch-processing discounts, fine-tuning, long-context surcharges above a provider's standard tier, and any enterprise agreement. These are published pay-as-you-go list prices, checked against each provider's own pricing page on the date shown.
- Is switching from Grok 4 to Cohere Command A worth it?
- On price alone it is about 27% cheaper on a blended basis. Whether that survives contact with your workload depends on output quality and on retry rate — a cheaper model that needs two attempts is not cheaper. Model the specific volumes in the calculator before you migrate.