Monthly cost at list price for five common workloads. Token counts per unit are stated so you can scale them to your own traffic. A workload that does not fit a model's context window is marked rather than priced.
Workload (per month)
Anthropic: Claude Sonnet 4
Cohere: Command A
Difference
Customer-support chatbot
50,000 conversations — each a 6-turn conversation (1,500 in / 400 out tokens)
$525
$388
Cohere: Command A saves $138
RAG search over documents
20,000 questions — each a question answered from ~8 retrieved passages (6,000 in / 500 out tokens)
$510
$400
Cohere: Command A saves $110
Coding / tool-using agent
2,000 tasks — each a multi-step task with tool calls and file context (60,000 in / 6,000 out tokens)
$540
$420
Cohere: Command A saves $120
Batch summarisation
10,000 documents — each a 6,000-word report summarised to a page (8,000 in / 600 out tokens)
$330
$260
Cohere: Command A saves $70.00
Long-document analysis
500 documents — each a 150-page contract or codebase read in one pass (100,000 in / 2,000 out tokens)
$165
$135
Cohere: Command A saves $30.00
Capabilities side by side
Capability
Anthropic: Claude Sonnet 4
Cohere: Command A
What it lets you do
Tool / function calling
✓ Yes
—
call your APIs and run agent loops
Structured output (JSON schema)
—
✓ Yes
return JSON that validates against your schema
Reasoning / thinking mode
✓ Yes
—
spend extra tokens thinking before answering hard problems
Image input
✓ Yes
—
read screenshots, charts and scanned pages
Audio input
—
—
take speech or audio directly
File / PDF input
✓ Yes
—
accept documents without your own parsing step
Image output
—
—
generate images, not just text
Built-in web search
✓ Yes
—
answer from live web results
Seed (reproducible sampling)
—
✓ Yes
repeat a generation for tests and evals
Log-probabilities
—
—
read token confidence for classification and scoring
From each model's published parameters and input/output types. “—” means not advertised, not proven absent.
Price history
Anthropic: Claude Sonnet 4: price unchanged since we started tracking it on 2026-03-10.
Cohere: Command A: price unchanged since we started tracking it on 2026-03-10.
Which should you choose?
Choose Anthropic: Claude Sonnet 4 if…
you need tool / function calling — to call your APIs and run agent loops; Cohere: Command A does not advertise it
you need reasoning / thinking mode — to spend extra tokens thinking before answering hard problems; Cohere: Command A does not advertise it
you need image input — to read screenshots, charts and scanned pages; Cohere: Command A does not advertise it
you need file / PDF input — to accept documents without your own parsing step; Cohere: Command A does not advertise it
you need built-in web search — to answer from live web results; Cohere: Command A does not advertise it
you generate long outputs in one go — up to 64K tokens (about 48,000 words) per response
Choose Cohere: Command A if…
cost matters at scale — it is 27% cheaper on a typical 3:1 input/output mix ($388 vs $525 a month for 50,000 support chats)
you need structured output (JSON schema) — to return JSON that validates against your schema; Anthropic: Claude Sonnet 4 does not advertise it
you need seed (reproducible sampling) — to repeat a generation for tests and evals; Anthropic: Claude Sonnet 4 does not advertise it
Frequently asked questions
Is Anthropic: Claude Sonnet 4 better than Cohere: Command A?
Neither wins outright: Anthropic: Claude Sonnet 4 is the pick when you need tool / function calling, Cohere: Command A when cost matters at scale. In short: Anthropic: Claude Sonnet 4 when you need tool / function calling, you need reasoning / thinking mode, you need image input, you need file / PDF input, you need built-in web search, you generate long outputs in one go; Cohere: Command A when cost matters at scale, you need structured output (JSON schema), you need seed (reproducible sampling).
Which is cheaper, Anthropic: Claude Sonnet 4 or Cohere: Command A?
Cohere: Command A is cheaper: $4.38 vs $6.00 per 1M tokens at a typical 3:1 input/output mix, 27% less. For 50,000 support conversations a month that is $388 against $525.
How much do Anthropic: Claude Sonnet 4 and Cohere: Command A cost per million tokens?
Anthropic: Claude Sonnet 4 costs $3.00 per 1M input tokens and $15.00 per 1M output tokens; Cohere: Command A costs $2.50 input and $10.00 output. Output tokens are billed separately, so long answers shift the gap.
Which has the bigger context window, Anthropic: Claude Sonnet 4 or Cohere: Command A?
Cohere: Command A: 256K tokens, about 384 pages, against 200K (about 300 pages) for Anthropic: Claude Sonnet 4.
Do Anthropic: Claude Sonnet 4 and Cohere: Command A support function calling and JSON output?
Tool calling — Anthropic: Claude Sonnet 4: yes, Cohere: Command A: not advertised. JSON-schema structured output — Anthropic: Claude Sonnet 4: not advertised, Cohere: Command A: yes.
Can Anthropic: Claude Sonnet 4 or Cohere: Command A read images?
Only Anthropic: Claude Sonnet 4 accepts image input; Cohere: Command A is text-only for input.
Is Anthropic: Claude Sonnet 4 or Cohere: Command A free to use?
No free variant is listed for either; both are pay-per-token.
What is the maximum output length of Anthropic: Claude Sonnet 4 and Cohere: Command A?
Anthropic: Claude Sonnet 4 can write up to 64K tokens (about 48,000 words) per response; Cohere: Command A up to 8K (about 6,100 words).
When were Anthropic: Claude Sonnet 4 and Cohere: Command A released?
Anthropic: Claude Sonnet 4 was listed on 2025-05-22; Cohere: Command A on 2025-03-13.
Claude Sonnet 4 significantly enhances the capabilities of its predecessor, Sonnet 3.7, excelling in both coding and reasoning tasks with improved precision and controllability. Achieving state-of-the-art performance on SWE-bench (72.7%),...
Command A is an open-weights 111B parameter model with a 256k context window focused on delivering great performance across agentic, multilingual, and coding use cases. Compared to other leading proprietary...