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How I AI · Tuesday, September 22, 2026

Opus 55 Outperforms GPT-4 and GPT-4 Turbo in Benchmarks

Anthropic's Opus 55 model has demonstrated strong performance in recent benchmarks, scoring higher than both GPT-4 and GPT-4 Turbo. It also outperformed Fable 1 by a significant margin.

companyAnthropiccompanyOpenAI

The tape

2 quotes
“Opus 55 is actually doing really well it's scoring higher than GPT 4 higher than Claude 2 and it's doing better than GPT 4 Turbo which is pretty impressive”
“and then um that it's scoring significantly higher than Fable 1 which is really interesting”
Heard on How I AI — “Opus 5.5 vs. GPT-6 Sol: which model won my blind taste test?”, published Tuesday, September 22, 2026. Heardvine summarizes and quotes with attribution and timestamps, and links to the original everywhere.
Transcribed via Gemini audio transcription · $0.05
Opus 55 Outperforms GPT-4 and GPT-4 Turbo in Benchmarks — Heardvine