Claude 3 Opus (2024-02-29)

API ID claude-3-opus-20240229

claude-3-opus-20240229 was an Anthropic model, released February 2024.

Status: Retired
Released: February 2024
Shutdown: Jan 5, 2026
Replacement: Claude Opus 4.8claude-opus-4-8

claude-3-opus-20240229 stopped serving on January 5, 2026. Recommended replacement: claude-opus-4-8.

Benchmarks

Scores as each source published them

Comparing with Claude 2.1, the previous model in this line. A score is compared only with the same benchmark from the same source, at the same setting where both have it. Full comparison: prices, limits, features

Arena

Arena	Claude 3 Opus (2024-02-29)	Claude 2.1	Rank	Date	Source
Text By category Math 1312 rank 234 vs not rated Creative writing 1288 rank 252 vs not rated Instruction following 1314 rank 245 vs not rated Hard prompts 1330 rank 254 vs not rated Long prompts 1330 rank 251 vs not rated Multi-turn 1322 rank 247 vs not rated Expert 1319 rank 244 vs not rated	1322 ±3	not rated	257 of 415 194,909 votes	Oct 13, 2026	source
Text: Coding	1355 ±6	not rated	264 of 410 33,748 votes	Oct 13, 2026	source
Vision	1061 ±10	not rated	142 of 165 15,565 votes	Oct 9, 2026	source

Rated as claude-3-opus-20240229. Ratings come from people voting between two anonymous answers; Text and Vision are style-controlled, as on arena.ai. Data: Arena (arena.ai), CC BY 4.0.

Epoch AI

Benchmark	Claude 3 Opus (2024-02-29)	Claude 2.1	Change	Run	Source
GPQA Diamond	47.2%	33.0%	+14.2 pts	Jan 27, 2025	source
MATH Level 5	37.5%	not run		Jan 27, 2025	source
OTIS Mock AIME 2024-2025	4.7%	1.9%	+2.8 pts	Feb 25, 2025	source
SimpleQA Verified	12.6%	not run		Aug 31, 2026	source

Run independently by Epoch AI. Data: Epoch AI, Capabilities & benchmarking (epoch.ai/benchmarks), CC BY.

On cloud platforms

All platform dates

Platform	Platform ID	State	Shutdown	Time left	Replacement	Source
Google Cloud Vertex AI	claude-3-opus	Retired on August 1, 2025	Aug 1, 2025		—	source

Google Cloud Vertex AI retired this model 157 days before Anthropic's own API.

Read daily from each platform's own pages. The shutdown date and countdown on this page use Anthropic's own date.

Price history

USD per 1M tokens, standard tier

No price history yet.

Prices

USD per 1M tokens, every type and band, by tier

No published prices.

Changelog

Changes we detected on Anthropic's pages

No changes recorded yet.

Last checked Oct 15, 2026, 2:00 am ET · Sources: Anthropic models, Anthropic deprecations, Anthropic pricing, Anthropic model pages