Coverage (30d)
38vs5
This Week
9vs1
Evidence
3 articlesRelationships
1Timeline
Claude Opus 4.62026-07-26
Released with 1M token context and 128k output.
Claude Opus 4.62026-07-25
Claude quietly removed full thinking traces feature, according to user reports and researcher Ethan Mollick.
Claude Opus 4.62026-07-24
Claude Opus 5 released with Fast Mode (2.5x speed) at Opus 4.8 pricing, saving 50% on tokens
Claude Fable 52026-07-13
Solved a string theory problem stalled for six months using SymPy verification
Claude Opus 4.62026-07-13
Claude Opus 4.8 beats Gemini Pro 5 by 11 points on Fable 5 benchmark
Claude Fable 52026-07-01
Claude Fable 5 returned to Claude Code after a two-week export-control shutdown
Claude Fable 52026-06-12
Anthropic voluntarily suspended Claude Fable 5 under a Washington directive blocking foreign users.
Claude Opus 4.62026-06-10
Claude Opus 4.8 achieves 89% task completion and 2.5% harm rate on WorkBench, a dramatic improvement over GPT-4.
Claude Opus 4.62026-06-06
Claude Opus 4.8 adds dynamic workflows for agentic coding
Ecosystem
Claude Opus 4.6
developed byAnthropic10 src
developedOpenAI4 src
competes withClaude Opus 4.73 src
competes withGPT-4 Turbo2 src
competes withFable 52 src
competes withChatGPT2 src
Claude Fable 5
usesSymPy1 src
competes withClaude Opus 4.61 src
Benchmarks
bird
Claude Opus 4.671.04
Claude Fable 5—
arena elo
Claude Opus 4.6—
Claude Fable 51350