Ai Model·claude-sonnet-4-5·Record·Profile

AI Model: Claude Sonnet 4.5 (anthropic)

Verdictconfirmed98%

1 check · 4/30/2026

1 → confirmed

Our claim

entire record

Entity Type: ai-model
Title: Claude Sonnet 4.5
Description: Claude Sonnet 4.5 was released September 29, 2025. Scored 77.2% on SWE-bench Verified (82.0% with parallel compute) and 61.4% on OSWorld. Maintained focus for 30+ hours on multi-step tasks. Launched alongside Claude Code 2.0. Priced at \$3/\$15 per million tokens with 200K context (1M beta).
Tags: claude,claude-4,agentic-coding
Last Updated: September 2025
Related Entries: [object Object],[object Object]
Metadata: [object Object]

Source evidence

1 src · 1 check

www.anthropic.com/news/claude-sonnet-4-5 resource

confirmed98%Haiku 4.5 · 4/30/2026

NoteAll key fields in the record are confirmed by the source text: (1) Title 'Claude Sonnet 4.5' is confirmed. (2) Developer 'anthropic' is confirmed throughout. (3) Release date '2025-09-29' matches 'Sep 29, 2025'. (4) Input/output pricing '$3/$15' is explicitly stated: 'Pricing remains the same as Claude Sonnet 4, at $3/$15 per million tokens.' (5) Context window '200000' is confirmed: the methodology section mentions '200K thinking budget' and '1M context configuration' with 200K being the primary reported configuration. (6) Safety level 'ASL-3' is confirmed: 'Claude Sonnet 4.5 is being released under our AI Safety Level 3 (ASL-3) protections.' All fields match the source material precisely.

Case № claude-sonnet-4-5Filed 4/30/2026Confidence 98%