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AI Model: Claude Opus 4.1 (anthropic)

Verdictpartial85%
1 check · 4/30/2026

1 → partial

Our claim

entire record
Entity Type
ai-model
Title
Claude Opus 4.1
Description
Claude Opus 4.1 was released August 5, 2025 as an incremental improvement over Opus 4 with gains in software engineering, agentic reasoning, and research-level tasks. Priced at \$15/\$75 per million tokens with a 200K token context window.
Tags
claude,claude-4
Last Updated
August 2025
Related Entries
[object Object],[object Object]
Metadata
[object Object]

Source evidence

1 src · 1 check
partial85%Haiku 4.5 · 4/30/2026

NoteThe source confirms title (Claude Opus 4.1), developer (Anthropic/anthropic), and releaseDate (Aug 5, 2025 / 2025-08-05). The context window of 200,000 tokens is confirmed by the source text header. However, the source explicitly states 'Pricing is the same as Opus 4' but does NOT provide the actual numerical pricing values (inputPrice: 15, outputPrice: 75). The claim's pricing figures cannot be verified from this source alone—they may be correct, but the source only says pricing matches Opus 4, not what those prices are. The safetyLevel (ASL-3) is not addressed anywhere in the source text. These unverified fields prevent a 'confirmed' verdict.

Case № claude-opus-4-1Filed 4/30/2026Confidence 85%