AI Observatory / Model Radar Anthropic / anthropic/claude-sonnet-4.6

Anthropic: Claude Sonnet 4.6

Sonnet 4.6 is Anthropic's most capable Sonnet-class model yet, with frontier performance across coding, agents, and professional work. It excels at iterative development, complex codebase navigation, end-to-end project management with...

1,000,000 Context
128,000 Max output
$3.00 / 1M Prompt price
2026-02-17 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 text, image
Output modalities text Prompt price $3.00 / 1M
Completion price $15.00 / 1M Request price N/A
Context length 1,000,000 Max completion tokens 128,000
Supported parameters include_reasoning, max_completion_tokens, max_tokens, reasoning, response_format, stop, structured_outputs, temperature, tool_choice, tools, top_k, top_p, verbosity
Best for anthropic/claude-sonnet-4.6

Anthropic: Claude Sonnet 4.6

Sonnet 4.6 is Anthropic's most capable Sonnet-class model yet, with frontier performance across coding, agents, and professional work. It excels at iterative development, complex codebase navigation, end-to-end project management with...

Coding workflows Cross-modal work Long context new 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.