Claude Sonnet 5 API pricing
Anthropic · chat model · 1M context · ranked #1444 of 1809 by input price
What Claude Sonnet 5 costs in practice
Claude Sonnet 5 is priced at $2 per million input tokens and $10 per million output tokens , with cached input billed at $0.2 per million — roughly 90% cheaper than fresh input, which matters if your app resends a large system prompt. Against the median priced chat model ($0.5/1M in), this sits at 4.0×.
Monthly cost examples
Assuming 1,200 prompt + 400 completion tokens per request unless noted, billed 30 days a month and without cache hits.
| Workload | Cost / month | Cost / day |
|---|---|---|
| 1,000 requests/day | $192 | $6.4 |
| 10,000 requests/day | $1920 | $64 |
| 100,000 requests/day | $19200 | $640 |
| 1M summaries/month | $18999.81 | $633.33 |
Model a different profile in the cost calculator.
Capabilities
Provider description
Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...
Cheaper alternatives
Ranked by blended cost (3× input + 1× output) — cheaper, but check context and capabilities before switching.
| # | Model | Provider | Input $/1M | Output $/1M | Cached $/1M | Context |
|---|---|---|---|---|---|---|
| 1 | Gemini Exp 1114 | Google Gemini | free | free | — | 1.0M |
| 2 | Gemini Exp 1206 | Google Gemini | free | free | — | 2.1M |
| 3 | Gemma 3 27b It | Google Gemini | free | free | — | 131K |
| 4 | Gemma 4 26b A4b It | Google Gemini | free | free | — | 262K |
| 5 | Gemma 4 31b It | Google Gemini | free | free | — | 262K |
| 6 | Learnlm 1.5 Pro Experimental | Google Gemini | free | free | — | 33K |
Data provenance
This page is assembled from the sources below. Where two sources disagree, both are shown.
- Our input price: $2
- Second source: —
- Our output price: $10
- Second source: —
More from Anthropic
Frequently asked
› How much does Claude Sonnet 5 cost per 1,000 tokens?
About $0.002 for input and $0.01 for output tokens, based on the per-million rates on this page.
› Is Claude Sonnet 5 cheaper than other models?
By input price it ranks #1444 of 1809 priced chat models in this index, putting it in the more expensive half of the market.
› How often is Claude Sonnet 5's price checked?
The dataset was last refreshed 2026-09-13 13:40 UTC. Providers can change pricing at any time — verify with Anthropic before committing to a budget.