Anthropic · The most demanding information tasks
Claude Opus 5
A choice for complex analysis, long tasks involving multiple steps and outputs where quality matters more than speed and cost.
- Costs
- High · $5 per million input tokens and $25 per million output tokens; a token is a small piece of text
- Speed
- Rather slow at the most thorough setting
- Availability
- Online service and apps from Anthropic
- Input length
- Very long input · up to 1 million tokens (small pieces of text)
- Inputs
- Text and image inputs
Data checked . Release date unverified.
Indicative capability profile
Where the model is strong
The five levels are our clear summary of the results below. They are not a ranking that applies to every task.
Ideal use
When to choose it
- Complex research and supporting information for decisions
- Long tasks the model solves in several steps
- Advanced coding and independent code review
Usage boundaries
When to choose another model
- Routine sorting and simple transcriptions
- Interactive tasks requiring an immediate response
Traceable supporting sources
Data and measurement sources
Distinguish between the manufacturer's documentation and the results of a specific test. Measurements also depend on the settings and the task set used.
Intelligence Index v4.1
61 pointsAt the top of the aggregate measurement as of 24 July 2026.
Open original source ↗AA-Briefcase
1720 Elo pointsA higher number is better. The model led in working with information; its tools were also tested.
Open original source ↗Terminal-Bench v2.1
89 %Very good result in coding and terminal work.
Open original source ↗Trends over time
Related events from AI Radar
Claude Opus 5.5 available on Amazon Bedrock with lower costs per task
According to Anthropic, developers working with long-running agentic tasks or extensive documents can expect clearer ongoing updates on model progress and less need to correct outputs, but also more frequent refusals of requests due to stricter safety classifiers.
According to Anthropic, companies running agentic tasks on Amazon Bedrock may achieve lower average costs per task thanks to lower token prices and significantly cheaper cache reads, which is particularly relevant for long-running and repeated workloads.
Anthropic has released Claude Opus 5 – a cheaper model close to Fable 5 in performance
Claude Pro and Max users get Opus 5 as the default or most capable available model with no price change; the choice of "effort" level (low to max) directly affects the balance of speed, quality, and cost for individual queries.
Companies deploying Claude in products or development gain a model that, according to Anthropic, comes close to Fable 5 in knowledge work and agentic coding at half the token price, changing the cost calculation for running AI.
GitHub recommends Claude Opus 5.5 following the retirement of Claude Opus 4.7
New: The recommended replacement for Claude Opus 4.7 is Claude Opus 5.5, not Claude Opus 5.
When switching from Claude Opus 4.7, follow the current recommendation to use Claude Opus 5.5; the earlier announcement listed a different replacement.
Migrating company workflows and integrations to supported models may require enabling replacement models through access policies in Copilot Enterprise or Copilot Business.
The Claude Opus 5.5 model is available in GitHub Copilot
Users on Copilot Pro+, Max, Business and Enterprise plans can select the Claude Opus 5.5 model in the model picker for agentic coding and long-running tasks once the gradual rollout reaches them.
Companies with Copilot Business or Enterprise can make the model available to teams through model policy; with usage-based billing, fewer steps and tokens for comparable tasks may mean lower costs for agentic tasks, according to Anthropic.
Next step
Compare the model using your actual task.
A benchmark narrows the selection. A short trial on your data determines the choice.