Developer Frameworks & Infrastructure
Claude Opus 5.5
Anthropic's flagship frontier model for complex reasoning and deep coding
Paid - from $15 / $75 per million tokensRuns in the cloud
Pricing
Paid - from $15 / $75 per million tokens
$15 / $75 per million tokens
Platforms
Web
Hosted app
Category
Developer Frameworks & Infrastructure
133 tools
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Last updated
Sep 30
Listing updated
Best for
Complex software architecture design
Architect entire multi-tier system designs, database schemas, and migration strategies with deep reasoning.
Pricing checked Sep 2026
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About Claude Opus 5.5
Claude Opus 5.5 is Anthropic's flagship frontier model built for high-stakes intellectual tasks. Designed for complex software architecture, multi-repository code refactoring, scientific research, and nuanced analysis, Opus 5.5 sets industry benchmarks across reasoning and coding evaluations.
It features a 200k token context window, extended thinking capabilities, and precise tool calling, making it the model of choice for autonomous developer agents and research pipelines.
- State-of-the-art benchmark performance in coding, math, and scientific reasoning
- Exceptional instruction-following and tool-use precision for autonomous agents
- 200k token context window with reliable middle-of-document recall
- Higher per-token pricing compared to lighter models like Claude 3.5 Haiku
- API rate limits apply on lower organization usage tiers
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