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

Mixtral 8×7B vs Grok 4.5

Mistral
Mixtral 8×7B
SpaceXAI
Grok 4.5
Overview
CompanyMistralSpaceXAI
Release dateDec 9 2023Jul 8 2026
AccessOpen WeightProprietary
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%
Timeline
Release gapMixtral 8×7B shipped 942 days before Grok 4.5

Which is better: Mixtral 8×7B or Grok 4.5?

Mixtral 8×7B and Grok 4.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mixtral 8×7B shipped 942 days before Grok 4.5, so benchmark comparisons should account for the intervening progress.

Mixtral 8×7B is open weight, while Grok 4.5 is proprietary.

Direct benchmark comparisons are unavailable — Mixtral 8×7B and Grok 4.5 don't publish scores on any of the same benchmarks.

Frequently asked questions

Mixtral 8×7B was released by Mistral on Dec 9 2023.

Grok 4.5 was released by SpaceXAI on Jul 8 2026.

Mixtral 8×7B is an open weight model released by Mistral. Grok 4.5 is a proprietary model released by SpaceXAI.

Other comparisons