OpenAI: GPT-5.6 Luna Pro (batch)

OpenAI · Tools · Structured output · Reasoning controls · Sampling controls · Output limits · Released Jul 9, 2026

Best input$0.1Lowest linked input observation · live snapshot

Best output$0.6May come from a different provider

Context window1.1M1,050,000 tokens

Provider profiles1Price observed Aug 22, 2026 01:39 UTC

Provider pricing

Compare provider prices

Published rates for providers serving this model. Open any source to see where and when the price was checked.

Provider	Input	Output	Cached input	Batch input	Evidence
OpenRouteropenrouter.ai ↗	$0.1/ 1M	$0.6/ 1M	$0.01	$0.1	Source https://openrouter.ai/api/v1/models See where this value came from and when it was checked. Source type Marketplace or aggregator Source retrieved Aug 22, 2026 · 01:39 UTC Effective date Not stated Verification Source verified View source ↗

Performance

Benchmark results collected from published sources. Scores from different benchmark versions or test setups may not be directly comparable.

Benchmark	Category	Score	Origin	Evidence
GPQA Diamond	reasoning	90.40	Public benchmark	Source GPQA Diamond via OpenRouter See where this value came from and when it was checked. Source type Independent benchmark Source retrieved Aug 26, 2026 · 06:00 UTC Effective date Aug 26, 2026 · 00:00 UTC Verification Source verified View source ↗
TAU-Bench	reasoning	72.70	Public benchmark	Source TAU-Bench via OpenRouter See where this value came from and when it was checked. Source type Independent benchmark Source retrieved Aug 26, 2026 · 06:00 UTC Effective date Aug 26, 2026 · 00:00 UTC Verification Source verified View source ↗

History

Recorded changes in pricing, availability and other tracked model data.

No recorded changes for this model yet.