AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

Claude 3.7 Sonnet vs GPT-5.6 Terra

Anthropic
Claude 3.7 Sonnet
OpenAI
GPT-5.6 Terra
Overview
CompanyAnthropicOpenAI
Release dateFeb 24 2025Jun 26 2026
AccessProprietaryProprietary
Benchmarks
Nonsense detection
BullshitBench v2
49%
Coding
SWE-Bench Verified
62.3%
Science
GPQA Diamond
68%
Timeline
Release gapClaude 3.7 Sonnet shipped 487 days before GPT-5.6 Terra

Which is better: Claude 3.7 Sonnet or GPT-5.6 Terra?

Claude 3.7 Sonnet and GPT-5.6 Terra don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude 3.7 Sonnet shipped 487 days before GPT-5.6 Terra, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

Direct benchmark comparisons are unavailable — Claude 3.7 Sonnet and GPT-5.6 Terra don't publish scores on any of the same benchmarks.

Frequently asked questions

Claude 3.7 Sonnet was released by Anthropic on Feb 24 2025.

GPT-5.6 Terra was released by OpenAI on Jun 26 2026.

Other comparisons