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

LLaMA 4 Scout vs Grok 4.5

Meta
LLaMA 4 Scout
SpaceXAI
Grok 4.5
Overview
CompanyMetaSpaceXAI
Release dateApr 5 2025Jul 8 2026
AccessOpen WeightProprietary
Benchmarks
Nonsense detection
BullshitBench v2
19%
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 gapLLaMA 4 Scout shipped 459 days before Grok 4.5

Which is better: LLaMA 4 Scout or Grok 4.5?

LLaMA 4 Scout and Grok 4.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. LLaMA 4 Scout shipped 459 days before Grok 4.5, so benchmark comparisons should account for the intervening progress.

LLaMA 4 Scout is open weight, while Grok 4.5 is proprietary.

Direct benchmark comparisons are unavailable — LLaMA 4 Scout and Grok 4.5 don't publish scores on any of the same benchmarks.

Frequently asked questions

LLaMA 4 Scout was released by Meta on Apr 5 2025.

Grok 4.5 was released by SpaceXAI on Jul 8 2026.

LLaMA 4 Scout is an open weight model released by Meta. Grok 4.5 is a proprietary model released by SpaceXAI.

Other comparisons