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Code Llama vs GPT-4.5

Meta Code Llama vs OpenAI GPT-4.5 — side-by-side specs.

Meta
Code Llama
OpenAI
GPT-4.5
Overview
CompanyMetaOpenAI
Release dateAug 24 2023Feb 27 2025
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapCode Llama shipped 553 days before GPT-4.5

Which is better: Code Llama or GPT-4.5?

Code Llama and GPT-4.5 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Code Llama shipped 553 days before GPT-4.5, so benchmark comparisons should account for the intervening progress.

Code Llama is an open-source / open-weight model; GPT-4.5 is proprietary.

Direct benchmark comparisons are unavailable — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.

Frequently asked questions

When was Code Llama released?
Code Llama was released by Meta on Aug 24 2023.
When was GPT-4.5 released?
GPT-4.5 was released by OpenAI on Feb 27 2025.
Is Code Llama or GPT-4.5 open source?
Code Llama is an open-source / open-weight model released by Meta. GPT-4.5 is a proprietary model released by OpenAI.

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