Claude Opus 5.5 at a glance
Claude Opus 5.5 leads Anthropic's own coding, computer-use and knowledge-work tests at $4/$20 per million tokens, and ranks second on Artificial Analysis' Intelligence Index.
Current standing
As of
- Rank
- #2of 43 models
Claude Opus 5.5 (Max) · 59.1 on the Artificial Analysis Intelligence Index v5.0.1 (opens in a new tab)
- Recorded at publication
- 59 (v5.0.1)
as of
- Current leader
- Gemini 4 Carbon (Google) · 60
Computed from our daily snapshot; it changes as new models are measured. Anthropic launches Claude Opus 5.5, first of the Claude 5.5 family
What changed with Claude Opus 5.5
Claude Opus 5.5 is available on the Claude Platform, Claude.ai plans, AWS, Google Cloud and Microsoft Azure as claude-opus-5-5, with a 1M-token context window. Anthropic reported 66.4% on Terminal-Bench 4.0 and 1846 Elo on GDPval-AA v2.1, ahead of both Fable 5.1 and Opus 5 in its table, while noting that benchmark gaps overstate real-world differences.
Price dropped to $4 input and $20 output per million tokens. Anthropic says it uses fewer tokens per task than Opus 5, writes output more than 30% faster, and resists prompt injection better. A fast mode of up to 2.5 times the speed costs $8/$40.
Claude Opus 5.5 benchmarks and pricing
Values are copied from the linked source on the date shown. They are not IA Compa measurements.
- Artificial Analysis Intelligence Indexas of · Source for Artificial Analysis Intelligence Index: artificialanalysis.ai (opens in a new tab)
- 59 (v5.0.1)
- Output speedas of · Source for Output speed: artificialanalysis.ai (opens in a new tab)
- 106 tokens/s
- Input price per 1M tokensas of · Source for Input price per 1M tokens: anthropic.com (opens in a new tab)
- $4.00
- Output price per 1M tokensas of · Source for Output price per 1M tokens: anthropic.com (opens in a new tab)
- $20.00
- Context windowas of · Source for Context window: platform.claude.com (opens in a new tab)
- 1M tokens
How it compares
Other models in the same category that we have covered, using each model's latest recorded value. (Models)
Claude Opus 5.5 reasoning effort
Artificial Analysis tests this model at several reasoning-effort settings. Higher effort usually scores higher but costs more and answers more slowly.
Claude Opus 5.5 by effort level
Higher effort lets the model think longer. Here is what each setting scores, how fast it writes, and what it costs on Artificial Analysis.
| Effort | Intelligence Index | Output speed (tokens per second) | Cost to run the index | Blended price (3:1) (per 1M tokens) | Price in / out (per 1M tokens) | First token |
|---|---|---|---|---|---|---|
| Max (Claude Opus 5.5 (max)) · Best: highest effort with a score, used in the leaderboard | 59 | 106 | $8,910 | $8 | $4 / $20 | 332 s |
| Extra high (Claude Opus 5.5 (xhigh)) | 57 | 107 | $4,766 | $8 | $4 / $20 | 83 s |
| High (Claude Opus 5.5 (high)) | 52 | 108 | $2,716 | $8 | $4 / $20 | 37 s |
| Medium (Claude Opus 5.5 (medium)) | 48 | 108 | $2,031 | $8 | $4 / $20 | 20 s |
| Low (Claude Opus 5.5 (low)) | 35 | 106 | $980 | $8 | $4 / $20 | 6.4 s |
Where to compare Claude Opus 5.5
Independent leaderboards and official resources for comparing this model yourself. Rankings change often; each site shows its own current data.
Leaderboards
General leaderboards
Official resources
Why Claude Opus 5.5 matters for businesses
On Artificial Analysis' Intelligence Index v5.0.1, Opus 5.5 scores 59 and ranks #2, just behind Gemini 4 Carbon. For agencies, it is a strong default for coding agents and document-heavy automation at a lower price than the previous Opus.
Put it to work: AI Agents
Sources for this story
- Introducing Claude Opus 5.5 (opens in a new tab)Official
Anthropic · anthropic.com
- Claude Platform release notes (opens in a new tab)Official
Anthropic · platform.claude.com
- Claude Opus 5.5 model page (opens in a new tab)Benchmark
Artificial Analysis · artificialanalysis.ai
Last verified: . IA Compa summarizes public announcements for business readers. We are not affiliated with the companies mentioned. Always confirm details, pricing, and availability with the official source.
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- #anthropic
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- #computer-use
