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

Claude 3.7 Sonnet vs Grok 4.5

Anthropic
Claude 3.7 Sonnet
SpaceXAI
Grok 4.5
Overview
CompanyAnthropicSpaceXAI
Release dateFeb 24 2025Jul 8 2026
AccessProprietaryProprietary
Benchmarks
Nonsense detection
BullshitBench v2
49%
Agentic coding
SWE-Bench Pro
64.7%
Coding
SWE-Bench Verified
62.3%
Multilingual coding
SWE-Bench Multilingual
78%
Agentic coding
DeepSWE 1.0
62%
Agentic terminal coding
Terminal-Bench 2.1
83.3%
Science
GPQA Diamond
68%
Timeline
Release gapClaude 3.7 Sonnet shipped 499 days before Grok 4.5

Which is better: Claude 3.7 Sonnet or Grok 4.5?

Claude 3.7 Sonnet and Grok 4.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude 3.7 Sonnet shipped 499 days before Grok 4.5, 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 Grok 4.5 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.

Grok 4.5 was released by SpaceXAI on Jul 8 2026.

Other comparisons