GPT-4.1 review, price and benchmarks (2026)

legacy paid api long-context

Provider

Statuslegacy

AA Intelligence Index19.4 (September 8, 2026 snapshot)

Releasedn/a

Context windown/a

Modalitiesn/a

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

Speedn/a

AccessAPI (legacy)

In one line

2025 workhorse with a then-notable 1M context. Cheap, stable, far from frontier.

Coding42

Reasoning35

Writing42

Agents & tools30

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

Alternatives worth a look

Mistral Small 4 (Mistral AI) · AA 19.6Open weights (Apache 2.0) · laptop-class
Trinity Large (Arcee AI) · AA 18.2Open weights
Mercury 2 (Inception Labs) · AA 21.4API

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Artificial Analysis Intelligence Index, 2026 rebased scale (top models ~ 55-66). Snapshot: September 4, 2026 (BenchLM mirror), retrieved September 8, 2026. Specs and prices come from the OpenRouter public model list on the same date. Models nobody has measured carry no index score at all and never enter a ranking: where an estimate exists it is shown separately and labelled unmeasured. Context, price, modality and release dates come from the public OpenRouter model list (retrieved September 8, 2026) and vendor pages. Missing values are not published or not yet verified - shown as -. Sources are linked inside the app (Model guide and About > Methodology).