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

SpaceXAI

Grok 4.5

Grok 4.5 is an AI model released by SpaceXAI on Jul 8 2026, 82 days after Grok 4.3 Beta. Benchmark results (shown below) cover SWE-Bench Pro, SWE-Bench Multilingual, DeepSWE 1.0, and Terminal-Bench 2.1.

Benchmarks

Agentic coding
SWE-Bench Pro
64.7%
Multilingual coding
SWE-Bench Multilingual
78%
Agentic coding
DeepSWE 1.0
62%
Agentic terminal coding
Terminal-Bench 2.1
83.3%

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