Claude 3 Opus review, price and benchmarks (2026)

legacy paid api writing

Provider

Statuslegacy

AA Intelligence Index11.8 (July 16, 2026 snapshot)

Releasedn/a

Context windown/a

Modalitiesn/a

API price $/1M (in / out)n/a

Speedn/a

AccessAPI (legacy)

In one line

The 2024 model that first made Claude famous for prose quality. Retired from frontier duty.

Coding25

Reasoning22

Writing40

Agents & tools15

Category scores (0-100) are WhichAI blended ratings: public category leaderboards plus editorial judgment. Guidance, not official measurements.

Alternatives worth a look

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Llama 4 Scout (Meta) · AA 10Open weights · very long context

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Artificial Analysis Intelligence Index, 2026 rebased scale (top models ≈ 55–60). Snapshot: July 24, 2026 (BenchLM mirror), retrieved July 26, 2026. Context, price and release data come from vendor pages and public pricing mirrors (retrieved July 19, 2026). Missing values are not published or not yet verified - shown as -. Sources are linked inside the app (Model guide and About > Methodology).