WhichAI / Models / Claude Sonnet 4.6

Claude Sonnet 4.6

Anthropic · verified September 8, 2026

public paid api in Generator writing value
ProviderAnthropic
Statuspublic
AA Intelligence Index35.9 (September 8, 2026 snapshot)
Releasedn/a
Context windown/a
Modalitiesn/a
API price $/1M (in / out)n/a
Speedn/a
AccessClaude Pro · API

In one line

The previous balanced default of the Claude line - solid quality at higher limits and lower cost.

Coding68
Reasoning62
Writing72
Agents & tools62

Category scores (0-100) are WhichAI blended ratings: public category leaderboards plus editorial judgment. Guidance, not official measurements.

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Artificial Analysis Intelligence Index, 2026 rebased scale (top models ~ 55-66). Snapshot: September 4, 2026 (BenchLM mirror), retrieved September 8, 2026. Specs and prices come from the OpenRouter public model list on the same date. Models nobody has measured carry no index score at all and never enter a ranking: where an estimate exists it is shown separately and labelled unmeasured. Context, price, modality and release dates come from the public OpenRouter model list (retrieved September 8, 2026) and vendor pages. Missing values are not published or not yet verified - shown as -. Sources are linked inside the app (Model guide and About > Methodology).