WhichAI / Models / GPT-3.5 Turbo

GPT-3.5 Turbo

OpenAI · verified October 13, 2026

legacy paid api
ProviderOpenAI
Statuslegacy
AA Intelligence Index5.5 (official, read October 13, 2026)
Released2023-05-28
Context window16K
ModalitiesText
API price $/1M (in / out)$0.5 / $1.5 (OpenRouter)
Speedn/a
AccessAPI $0.5/$1.5 per 1M tokens on OpenRouter · listed May 28, 2023

In one line

GPT-3.5 Turbo by OpenAI, measured by Artificial Analysis at 5.5 on the Intelligence Index, 10.7 on coding. Added to WhichAI automatically from live data on October 13, 2026: no editorial review yet, so judge it by the numbers, not by a verdict. OpenRouter's description: “GPT-3.5 Turbo is OpenAI's fastest model.”

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Artificial Analysis Intelligence Index, official scale (the number published on artificialanalysis.ai), relayed by OpenRouter and refreshed automatically: last read October 13, 2026. 210 models carry a current official measurement. A value marked ~ is converted from an earlier snapshot because no current measurement is published; an unmeasured model is never ranked. Context, price, modality and listing dates come from the public OpenRouter model list (refreshed automatically on the live site; static copy retrieved October 3, 2026) and vendor pages. Missing values are not published or not yet verified - shown as -. Sources are linked inside the app (the Ranking chapter and About > Methodology).