Anthropic › Claude Opus 5.5 › Pricing
Claude Opus 5.5 pricing
API list price by Anthropic · same on Amazon Bedrock, Azure, Claude Platform on AWS · checked Oct 23, 2026
$4 / $20per 1M tokens in / out
$0.20cache read · −95%
$2 / $10batch · −50%
$1.34per task at medium?
#7on OpenRouter by tokens · 7.1T / week
Price sheetper 1M tokens
| Input | $4 | list |
| Output | $20 | |
| Cache read | $0.20 | −95% vs input |
| Cache write · 5 min | $5 | +25% vs input |
| Cache write · 1 h | $8 | +100% vs input |
| Batch input | $2 | −50% |
| Batch output | $10 | −50% |
| Context · max output | 1M · 128K | tokens |
Cost per task by effort?
low$0.5548.3
mediumAPI default$1.3454.7
high$1.8255.6
xhigh$3.4657.5
max$5.9861.4
per taskHumanity's Last Exam
Same price per token at every effort; the bill grows with reasoning tokens. max costs 4.5× medium for +6.6 points.
Where to buy6 providers · per 1M tokens
| Provider | Input | Output | Context |
|---|---|---|---|
| Amazon Bedrock | $4 | $20 | 1M |
| Anthropiclab | $4 | $20 | 1M |
| Azure | $4 | $20 | 1M |
| Claude Platform on AWS | $4 | $20 | 1M |
| DeepInfra | $4 | $20 | — |
| $4 | $20 | 1M |
In Anthropic's line-upper 1M in / out
| Claude Haiku 5.5 | $0.10 / $0.50 | −97% |
| Claude Sonnet 5.5 | $2 / $10 | −50% |
| Claude Opus 5.5 | $4 / $20 | this model |
| Claude Fable 5.1 | $10 / $50 | 2.5× |
| Claude Mythos 5 | $10 / $50 | 2.5× |
| Claude Mythos 5.1 | $10 / $50 | 2.5× |
Cheaper for the same workvs Opus 5.5 at medium
| GPT-6.1 Sol max | -46% | same score | $0.72 |
| GPT-6 Sol max | -22% | score -7% | $1.04 |
| Claude Sonnet 5.5 high | -34% | score -9% | $0.88 |
| MiMo v2.6 Pro thinkingOpen | -90% | score -10% | $0.13 |
| GPT-6 Astra low | -39% | score -11% | $0.82 |
Pricing questions
How much does Claude Opus 5.5 cost?›
$4 per 1M input tokens and $20 per 1M output tokens on Anthropic's API and Amazon Bedrock, Azure, Claude Platform on AWS. Cached input is $0.20. Batch requests cost $2 / $10. One Intelligence Index task costs about $1.34 at the default effort.
Is Claude Opus 5.5 free to use?›
There is no free API tier.
How much does prompt caching save?›
Cache reads cost $0.20 per 1M, 95% below the input price. Writing to the cache costs $5 per 1M (5m TTL).
Is Claude Opus 5.5 cheaper than Claude Opus 5?›
Yes: $4 / $20 against $5 / $25, 20% less per token.
How does effort change the price?›
The price per token is the same at every effort. Higher effort spends more reasoning tokens: a task costs $0.55 at low, $1.34 at medium, $1.82 at high, $3.46 at xhigh, $5.98 at max.
What is a cheaper alternative to Claude Opus 5.5?›
GPT-6.1 Sol at max effort costs -46% per task with a score within a point on Humanity's Last Exam.