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GPT-5.6 luna

OpenAI1.05M contextVisionReasoningTool callingWeb search

LMArena score 1431 · #93 overall · #77 in coding (2026-10-13)

Official price from OpenAI

Pricing page

Per million tokens

Input
$0.20
Output
$1.20
Cached input
$0.02
Batch input / output
$0.10 / $0.60
  • Long prompts are priced higher above a context threshold; these are the starting prices.
  • Writing to the prompt cache costs $0.25 per million tokens.
  • Up to 128K output tokens per request.

Estimate your monthly cost

Est. per month = input tokens × input price + output tokens × output price. Prices are per million tokens, so 10M input tokens at $3.00 cost $30.

From OpenAI: $4.40 a month.

Where to buy it (3)

Sorted by your monthly estimate. Prices per million tokens.

  • AIHubMix

    Input / output
    $0.20 / $1.20
    Context
    1.05M
    Per month
    $4.40

    aihubmix/gpt-5.6-luna

  • Azure OpenAI

    Input / output
    $0.20 / $1.20
    Context
    922K
    Per month
    $4.40

    azure/gpt-5.6-luna

  • OpenAIOfficial

    Input / output
    $0.20 / $1.20
    Context
    922K
    Per month
    $4.40

    gpt-5.6-luna

Cloud and hosted sellers may add regional pricing, minimums or platform fees. Supports: Vision, Reasoning, Tool calling, Web search.

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