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Models › ~openai › OpenAI: GPT Luna Latest

OpenAI: GPT Luna Latest — pricing & benchmarks

By ~openai · Updated 2026-10-24 · Reads imageslong-context / RAGreads images / documentscheap high-volumestep-by-step reasoning

OpenAI: GPT Luna Latest costs $0.1 per 1M input tokens and $0.5 per 1M output tokens, with a 1M context window. It is best suited for long-context / RAG, reads images / documents, cheap high-volume, step-by-step reasoning, and is available through one OpenAI-compatible Appmo API key.
$0.1Input / 1M
$0.5Output / 1M
1MContext
0Buzz (0-100)

What OpenAI: GPT Luna Latest is used for

OpenAI: GPT Luna Latest is best suited for long-context / RAG, reads images / documents, cheap high-volume, step-by-step reasoning. Access it through one Appmo API key alongside 458 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-luna-latest","messages":[{"role":"user","content":"Hello"}]}'

FAQ

How much does OpenAI: GPT Luna Latest cost?
OpenAI: GPT Luna Latest costs $0.1 per 1M input tokens and $0.5 per 1M output tokens ($0.2 blended), as of 2026-10-24. Prices are expected to fall as competition increases.

What is OpenAI: GPT Luna Latest best for?
OpenAI: GPT Luna Latest is best suited for long-context / RAG, reads images / documents, cheap high-volume, step-by-step reasoning.

How do I use OpenAI: GPT Luna Latest?
Send requests to Appmo's OpenAI-compatible endpoint with model id "~openai/gpt-luna-latest" and one API key — no separate provider account needed.

Is OpenAI: GPT Luna Latest open source?
We have no record of public weights for OpenAI: GPT Luna Latest; treat it as a closed model available only through its provider's API.

Can OpenAI: GPT Luna Latest create images?
No. OpenAI: GPT Luna Latest can read and understand images, but it only writes text.