in the loop

GPT-5.6 Luna Pro
Not scored yet.

OpenAIJul 9, 2026

Capabilities Index

Not run yet

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Context

Takes file, image, text

1.05M

Input

Per 1M tokens

$0.20

Output

Per 1M tokens

$1.20

Benchmarks

No independent scores yet.

Epoch AI hasn't run GPT-5.6 Luna Pro yet. Its scores show up here the morning after they do.

On the index

The top of the index.

  1. #1Claude Opus 5.5Anthropic · $4.00 in167.3
  2. #2GPT-6 AstraOpenAI · $10 in166.4
  3. #3GPT-6.1 SolOpenAI · $2.00 in166.1
  4. #4Claude Sonnet 5.5Anthropic · $2.00 in165.0
  5. #5Claude Fable 5.1Anthropic · $10 in164.7
  6. #6Claude Opus 5Anthropic · $5.00 in162.8

Sources