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

Mistral NeMo vs Grok 4.5

Mistral
Mistral NeMo
SpaceXAI
Grok 4.5
Overview
CompanyMistralSpaceXAI
Release dateJul 18 2024Jul 8 2026
AccessOpen WeightProprietary
Specifications
Parameters
12B
Context window
128k
Benchmarks
Agentic coding
SWE-Bench Pro
64.7%
Multilingual coding
SWE-Bench Multilingual
78%
Agentic coding
DeepSWE 1.0
62%
Next.js coding
Next.js Evals
83%
Agentic terminal coding
Terminal-Bench 2.1
83.3%
Agentic legal work
Harvey's Legal Agent Benchmark
12.92%
Medical admin work
MedScribe
86.88%
Community preference (code)
Arena Elo (Code)
1566
Timeline
Release gapMistral NeMo shipped 720 days before Grok 4.5

Which is better: Mistral NeMo or Grok 4.5?

Mistral NeMo and Grok 4.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral NeMo shipped 720 days before Grok 4.5, so benchmark comparisons should account for the intervening progress.

Mistral NeMo is open weight, while Grok 4.5 is proprietary.

Direct benchmark comparisons are unavailable — Mistral NeMo and Grok 4.5 don't publish scores on any of the same benchmarks.

Frequently asked questions

Mistral NeMo was released by Mistral on Jul 18 2024.

Grok 4.5 was released by SpaceXAI on Jul 8 2026.

Mistral NeMo is an open weight model released by Mistral. Grok 4.5 is a proprietary model released by SpaceXAI.

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