Skip to content
Longterm Wiki
Index
Ai Model·claude-sonnet-4-6·Record·Profile

AI Model: Claude Sonnet 4.6 (anthropic)

Verdictpartial92%
1 check · 4/30/2026

1 → partial

Our claim

entire record
Entity Type
ai-model
Title
Claude Sonnet 4.6
Description
Claude Sonnet 4.6 was released February 17, 2026. Scored 79.6% on SWE-bench Verified and ranked No. 1 on GDPval-AA leaderboard. Matches Opus-class performance on many benchmarks at one-fifth the cost. Default model for free and Pro Claude users. Priced at \$3/\$15 per million tokexpandClaude Sonnet 4.6 was released February 17, 2026. Scored 79.6% on SWE-bench Verified and ranked No. 1 on GDPval-AA leaderboard. Matches Opus-class performance on many benchmarks at one-fifth the cost. Default model for free and Pro Claude users. Priced at \$3/\$15 per million tokens with 200K context (1M beta).
Tags
claude,claude-4
Last Updated
February 2026
Related Entries
[object Object],[object Object]
Metadata
[object Object]

Source evidence

1 src · 1 check
partial92%Haiku 4.5 · 4/30/2026

NoteThe source confirms title (Claude Sonnet 4.6), developer (Anthropic), release date (Feb 17, 2026), input price ($3), output price ($15), and context window (1M tokens = 1,000,000 tokens, not 200,000 as claimed). The context window claim is contradicted: the source explicitly states '1M token context window in beta' and 'Sonnet 4.6's 1M token context window', which is 1,000,000 tokens, not 200,000. The safety level 'ASL-3' is unverifiable—the source describes safety qualitatively but does not assign an ASL rating. The record's context window value is factually incorrect based on the source.

Case № claude-sonnet-4-6Filed 4/30/2026Confidence 92%