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

LLaMA 2 vs gpt-oss-20b

Meta
LLaMA 2
OpenAI
gpt-oss-20b
Overview
CompanyMetaOpenAI
Release dateJul 18 2023Aug 5 2025
AccessOpen WeightOpen Weight
Timeline
Release gapLLaMA 2 shipped 749 days before gpt-oss-20b

Which is better: LLaMA 2 or gpt-oss-20b?

LLaMA 2 and gpt-oss-20b don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. LLaMA 2 shipped 749 days before gpt-oss-20b, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

Direct benchmark comparisons are unavailable — LLaMA 2 and gpt-oss-20b don't publish scores on any of the same benchmarks.

Frequently asked questions

LLaMA 2 was released by Meta on Jul 18 2023.

gpt-oss-20b was released by OpenAI on Aug 5 2025.

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