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

Claude Sonnet 4 vs Code Llama

Anthropic
Claude Sonnet 4
Meta
Code Llama
Overview
CompanyAnthropicMeta
Release dateMay 22 2025Aug 24 2023
AccessProprietaryOpen Weight
Benchmarks
Nonsense detection
BullshitBench v2
30%
Coding
SWE-Bench Verified
72.7%
Science
GPQA Diamond
75.4%
Timeline
Release gapCode Llama shipped 637 days before Claude Sonnet 4

Which is better: Claude Sonnet 4 or Code Llama?

Claude Sonnet 4 and Code Llama don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Code Llama shipped 637 days before Claude Sonnet 4, so benchmark comparisons should account for the intervening progress.

Claude Sonnet 4 is proprietary, while Code Llama is open weight.

Direct benchmark comparisons are unavailable — Claude Sonnet 4 and Code Llama don't publish scores on any of the same benchmarks.

Frequently asked questions

Claude Sonnet 4 was released by Anthropic on May 22 2025.

Code Llama was released by Meta on Aug 24 2023.

Claude Sonnet 4 is a proprietary model released by Anthropic. Code Llama is an open weight model released by Meta.

Other comparisons