Coverage (30d)
5vs39
This Week
0vs8
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 Opus 4.62026-07-13
Claude Opus 4.8 beats Gemini Pro 5 by 11 points on Fable 5 benchmark
GPT-4 Turbo2026-07-06
GPT-4 launched and began its 52-week reign at the top of the ECI
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
GPT-4 Turbo2026-03-14
Release of GPT-4, which established OpenAI's early dominance in the AI race.
GPT-4 Turbo2024-09-01
GPT-4 surpassed on ECI by GPT-4o and Claude 3.5 Sonnet, ending 18-month reign.
GPT-4 Turbo2023-03-14
Official public launch of GPT-4 by OpenAI
Ecosystem
GPT-4 Turbo
competes withClaude Opus 4.71 src
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
Benchmarks
bird
GPT-4 Turbo—
Claude Opus 4.671.04