Timeline
Achieved top score of 94.1% on ThermoQA benchmark.
Anthropic released Claude Opus 4.7 with an updated tokenizer that increases token counts for the same input
Released Claude Opus 4.7 with 87.6% on SWE-Bench
Will likely be retired within a quarter based on Anthropic's recent cadence
Viral incident where model reportedly refused to answer 'What is 2+2?' citing potential harm
Claude Opus 4.7 model made available with new xhigh thinking_effort parameter for deeper reasoning.
Rumored imminent release of Anthropic's Claude Opus 4.7 model.
Claude Opus 4.7 model identifier appears on Anthropic's internal API, hinting at imminent public release.
Ecosystem
Claude Opus 4.6
Claude Opus 4.7
Benchmarks
Evidence (14 articles)
Anthropic Opus 4.7: 87.6% SWE-Bench, Constrained Cyber Capabilities
Apr 23, 2026Anthropic's Opus 4.7 Shows Sustained Gains on Economically Critical Tasks
Apr 18, 2026Claude 'Mythos' Leak Suggests New Tier Beyond Opus 4.6, Targeting Cybersecurity Partners First
Mar 27, 2026Opus 4.6 Is Gone from Claude Code: What Developers Should Do Now
Apr 22, 2026llm-anthropic 0.25 Adds Opus 4.7 with xhigh Thinking Effort — Here's How
Apr 16, 20263 Ways to Switch Claude Code Models Instantly: /model, --flag, and ENV Variables
Apr 23, 2026Anthropic to Launch Claude Opus 4.7 & AI Design Tool This Week
Apr 14, 2026Claude Opus 4.7 Appears on Anthropic's Internal API, Hinting at Imminent Release
Apr 12, 2026+ 6 more articles