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Models › openai › OpenAI: GPT-3.5 Turbo Instruct

OpenAI: GPT-3.5 Turbo Instruct — pricing & benchmarks

By openai · Updated 2026-07-24 · general-purpose chat

OpenAI: GPT-3.5 Turbo Instruct costs $1.5 per 1M input tokens and $2 per 1M output tokens, with a 4K context window. It is best suited for general-purpose chat, and is available through one OpenAI-compatible Appmo API key.
$1.5Input / 1M
$2Output / 1M
4KContext
—Intelligence
—Coding
—GPQA %
—Speed tok/s

What OpenAI: GPT-3.5 Turbo Instruct is used for

OpenAI: GPT-3.5 Turbo Instruct is best suited for general-purpose chat. Access it through one Appmo API key alongside 390 other models — Appmo's optimizer can route to it automatically when it is the best value for a request.

Use it via the Appmo API (OpenAI-compatible)

curl https://appmo.com/v1/chat/completions \
  -H "Authorization: Bearer $APPMO_KEY" \
  -d '{"model":"openai/gpt-3.5-turbo-instruct","messages":[{"role":"user","content":"Hello"}]}'

FAQ

How much does OpenAI: GPT-3.5 Turbo Instruct cost?
OpenAI: GPT-3.5 Turbo Instruct costs $1.5 per 1M input tokens and $2 per 1M output tokens ($1.625 blended), as of 2026-07-24. Prices are expected to fall as competition increases.

What is OpenAI: GPT-3.5 Turbo Instruct best for?
OpenAI: GPT-3.5 Turbo Instruct is best suited for general-purpose chat.

How do I use OpenAI: GPT-3.5 Turbo Instruct?
Send requests to Appmo's OpenAI-compatible endpoint with model id "openai/gpt-3.5-turbo-instruct" and one API key — no separate provider account needed.