Claude Sonnet 5 API pricing
Published on-demand rates for Anthropic's claude-sonnet-5, captured 2026-09-21 from public pricing data and committed to our archive. Context window 1M tokens; first observed in our archive 2026-07-01.
| Meter | USD per 1M tokens |
|---|---|
| Input | $2.00 |
| Output | $10.00 |
| Cached input | $0.200 |
Standard on-demand rates. Excludes batch endpoints and negotiated pricing; confirm on Anthropic's pricing page before committing.
What it costs on a real workload
Per 1M tokens processed, at the rates above. How the four profiles are defined.
| Profile | In / out mix | Cached share | Cost |
|---|---|---|---|
| Retrieval | 800k / 200k | 70% | $2.59 |
| Chat | 500k / 500k | 30% | $5.73 |
| Content | 200k / 800k | 20% | $8.33 |
| Agent | 900k / 100k | 85% | $1.42 |
Observed rate history
| Observed | Input | Output | Cached input | |
|---|---|---|---|---|
| 2026-07-01 | $3.00 | $15.00 | $0.300 | entered our archive |
| 2026-07-06 | $2.00 | $10.00 | $0.200 | repricing observed |
Dates are when we observed the rate in our own snapshots, which can lag the provider's announcement. Rates per 1M tokens.
What the record shows
We have observed one change to Claude Sonnet 5's rates since it entered our archive on 2026-07-01. In the most recent, on 2026-07-06, Anthropic cut the output rate by 33%, from $15.00 to $10.00 per 1M.
Against the 40 models we price, it is the 30th cheapest for retrieval-shaped work, which reads a great deal and writes little, and the 33rd cheapest for content-shaped work, which does the reverse. The two are far apart, and that is the useful part: Claude Sonnet 5 is relatively better value the more your workload reads and the less it writes. A single position in a table sorted one way would have told you the opposite of the truth for the other kind of work.
It charges 5.0 times more for output than for input, against a median of 5.0 times across the set. That is close to typical for the models we track.
Inside Anthropic's own lineup it is the 2nd cheapest of the 4 models we track on this workload, so 1 cheaper and 2 more expensive options sit on the same account behind the same key.
7 of the 40 models we price offer a larger context window, and 5 match it exactly. Context is a capability limit rather than a cost one: paying more buys no extra room unless the larger window is what you are paying for.
Cached input reads at $0.200 against a standard input rate of $2.00, a 90% discount on the part of your prompt that repeats.
It accepts image input and Anthropic publishes a tokenisation rule for it, so a scanned page can be priced honestly: about 4,758 tokens for a US Letter page at 200 DPI, before the instructions you send with it.
Its 1M token context window holds roughly 750,000 words of English text in a single request, or about 210 scanned pages at the per-page figure above. A workload that does not fit cannot run here at any price, which is a capability limit rather than a cost one.
Priced near this one
Closest to Claude Sonnet 5 on a retrieval workload, cheaper and more expensive alike. Cost only; we publish no quality score.
| Model | Provider | Input | Output | vs Claude Sonnet 5 |
|---|---|---|---|---|
| Magistral Medium 1.2 | Mistral | $2.00 | $5.00 | about the same |
| Gemini 2.5 Pro | $1.25 | $10.00 | 9% less | |
| GPT 5 Chat | OpenAI | $1.25 | $10.00 | 9% less |
| GPT 5.6 Terra | OpenAI | $2.00 | $12.00 | 15% more |
Retrieval profile: 800k in, 200k out, 70% cached where offered.
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