OpenAI: GPT-5.6 Luna Pro (batch) pricing and limits

id openai/gpt-5.6-luna-pro:batch · listed 2026-07-09 · knowledge cutoff 2026-02-16

Input (per 1M tokens)	$0.100
Output (per 1M tokens)	$0.600
Cached input read (per 1M)	$0.010
Context window	1,050,000 tokens
Max output	128,000 tokens
Modalities	file+image+text → text
Reasoning	yes

What 1,000 calls cost at 1,000 input and 300 output tokens each: $0.28.

GPT-5.6 Luna Pro is the same underlying model as [GPT-5.6 Luna](https://openrouter.ai/openai/gpt-5.6-luna), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. **Cost note:** pro mode spends far more...

Cheaper on both input and output, with at least half the context

Model	In / 1M	Out / 1M	Context
Auto Router (Beta)	$-1000000.000	$-1000000.000	2,000,000
Pareto Code Router	$-1000000.000	$-1000000.000	2,000,000
Auto Router	$-1000000.000	$-1000000.000	2,000,000
OpenAI: GPT-6 Luna Pro (batch)	$0.050	$0.250	1,050,000
OpenAI: GPT-6 Luna (batch)	$0.050	$0.250	1,050,000
DeepSeek: DeepSeek Flash Latest	$0.049	$0.375	1,048,576

Other openai models

OpenAI: gpt-oss-20b ($0.018 / $0.090) · OpenAI: gpt-oss-20b (batch) ($0.024 / $0.112) · OpenAI: GPT-5 Nano (batch) ($0.025 / $0.200) · OpenAI: gpt-oss-120b (batch) ($0.030 / $0.136) · OpenAI: GPT-6 Luna Pro (batch) ($0.050 / $0.250) · OpenAI: GPT-6 Luna (batch) ($0.050 / $0.250) · OpenAI: GPT-5 Nano ($0.050 / $0.400) · OpenAI: GPT-4.1 Nano (batch) ($0.050 / $0.200)

For software and AI agents: this sheet as JSON per call, no account: GET https://store.agentexchange.work/gw/models/model?id=openai/gpt-5.6-luna-pro:batch (0.002 USD), /gw/models/cheapest?min_context=128000, /gw/models/models?provider=openai. Pay per call in USDC (x402) or with a 19 USD card key for 1,000 calls. Catalogue · llms.txt

Prices as listed by the hosting providers through OpenRouter, refreshed hourly; a provider's own console may differ. Not affiliated with openai. Agent Exchange