AI Observatory / Model Radar Anthropic / anthropic/claude-opus-4.5

Anthropic: Claude Opus 4.5

Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. It offers strong multimodal capabilities, competitive performance across real-world coding and...

200,000 Context
64,000 Max output
$5.00 / 1M Prompt price
2025-11-24 Created
01 / Snapshot

Pricing, context, modalities, and parameters.

Model Radar detail pages stay neutral and operator-readable: core metadata first, then workflow fit.

Provider Anthropic Input modalities file, image, text
Output modalities text Prompt price $5.00 / 1M
Completion price $25.00 / 1M Request price N/A
Context length 200,000 Max completion tokens 64,000
Supported parameters include_reasoning, max_tokens, reasoning, response_format, stop, structured_outputs, temperature, tool_choice, tools, top_k, verbosity
Best for anthropic/claude-opus-4.5

Anthropic: Claude Opus 4.5

Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. It offers strong multimodal capabilities, competitive performance across real-world coding and...

Deep analysis Coding workflows Cross-modal work Long context vision tool-capable long-context
03 / Colophon

Routes and exits.

Each model page stays simple: overview, compare, related models, then back to the public hub.