Claude Opus 5 5 API pricing
Anthropic · chat model · 1M context · ranked #1888 of 2072 by input price
What Claude Opus 5 5 costs in practice
Claude Opus 5 5 is priced at $4 per million input tokens and $20 per million output tokens , with cached input billed at $0.2 per million — roughly 95% cheaper than fresh input, which matters if your app resends a large system prompt. Against the median priced chat model ($0.55/1M in), this sits at 7.3×.
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 | $384 | $12.8 |
| 10,000 requests/day | $3840 | $128 |
| 100,000 requests/day | $38400 | $1280 |
| 1M summaries/month | $37999.62 | $1266.65 |
Model a different profile in the cost calculator.
Capabilities
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.
Only one source publishes this model; no independent cross-check available yet.
More from Anthropic
Frequently asked
› How much does Claude Opus 5 5 cost per 1,000 tokens?
About $0.004 for input and $0.02 for output tokens, based on the per-million rates on this page.
› Is Claude Opus 5 5 cheaper than other models?
By input price it ranks #1888 of 2072 priced chat models in this index, putting it in the more expensive half of the market.
› How often is Claude Opus 5 5's price checked?
The dataset was last refreshed 2026-09-22 18:10 UTC. Providers can change pricing at any time — verify with Anthropic before committing to a budget.