Product
Claude Opus 4.5: specs, API pricing and data
Updated
AnthropicAI Models & LLMs
- SWE-bench accuracy
- 79.2%
- Input cost per 1M tokens
- $5.00
- Output cost per 1M tokens
- $25.00
Data sheet · Claude Opus 4.5
Every figure is quoted from the vendor's official page, with the date we read it. If a row is missing, the source does not state it and we do not estimate it.
Performance
- SWE-bench accuracy
- 79.2%Rank 1 of 5
What it means and the source
How many real programming problems (issues of open source projects) it solves on its own in the independent SWE-bench Verified ranking. The higher, the better it writes and fixes code.
swebench.comOpens the source in a new tab Oct 28, 2026
API prices
- Input cost per 1M tokens
- $5.00Rank 18 of 21
What it means and the source
What it costs to have the model read a million tokens (your question, the documents, the code). It is the official list price, before discounts.
platform.claude.comOpens the source in a new tab Oct 23, 2026- Cached input cost per 1M tokens
- $0.50Rank 18 of 20
What it means and the source
The reduced price when part of the request is identical to one sent recently, for example the same instructions or the same document: the vendor keeps it in memory and charges less for it.
platform.claude.comOpens the source in a new tab Oct 23, 2026- Output cost per 1M tokens
- $25.00Rank 18 of 21
What it means and the source
What a million tokens written by the model cost. It usually costs more than the input and is the figure to watch when answers are long.
platform.claude.comOpens the source in a new tab Oct 23, 2026
Where it stands · Claude Opus 4.5
The same verified figures, next to those of the other catalogue models. Tap a model for the head-to-head.
Questions and answers
Claude Opus 4.5: how much does it cost through the API?
The official list price is $5.00 per 1M input tokens and $25.00 per 1M output tokens.
Claude Opus 4.5: how good is it at coding?
It solves 79.2% of the problems in SWE-bench Verified, the independent ranking of real programming problems.
The short version
On Anthropic Claude Opus 4.5 the figure that actually matters is SWE-bench Verified (resolved %): 79.2. I took that figure from https://www.swebench.com/verified. Among the 5 I checked, none does better. The other figure to look at is Output cost per 1M tokens: 25.
The numbers on Anthropic Claude Opus 4.5
I put them in order of importance, with the value and the standing against the others I checked.
SWE-bench Verified (resolved %): 79.2. That is the best value among the 5 I compared.
Output cost per 1M tokens: 25. Rank 18 of the 21 I compared.
Input cost per 1M tokens: 5. Rank 18 of the 21 I compared.
Cached input cost per 1M tokens (USD): 0.5. Rank 2 of the 20 I compared.
Who it is for
Take it if SWE-bench Verified (resolved %) is your priority: 79.2, and none of the ones I checked does better.
Look elsewhere if what matters to you is Output cost per 1M tokens: here it is 25, and 17 products do better.
Explore related coverage
Sources
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Reviews and tests
Anthropic Claude Opus 4.5
Reviews and tests · Anthropic Claude Opus 4.5
Reviews are not available yet.
What changed
- Page updated
- Page updated
- Page updated
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