GPT-5.6 Luna

openai/gpt-5.6-luna

Maker: OpenAI, United States
Released: 2026-07-09
Knowledge cutoff: 2026-02-16
Family: gpt-luna
Weights: closed
Tasks: text.chat, text.reasoning, code, vision.understand, vision.extract
Cheapest offering: Azure OpenAI, about $0.00056 for a typical text.chat call

Try it in the sandbox Use it from the API

Offerings

Provider	Model id at the provider	Status	Price per 1M tokens	Per-unit prices	Limits	Capabilities (level)
Azure OpenAI	`gpt-5.6-luna`	gadeprecated 2028-01-11	Input: $0.2 Output: $1.2 Cache read: $0.02 Cache write (5 min): $0.25 Input, prompts over 272,000 tokens: $0.4 Output, prompts over 272,000 tokens: $1.8 Cache read, prompts over 272,000 tokens: $0.04 Cache write (5 min), prompts over 272,000 tokens: $0.5 Since 2026-11-03 · models.dev, MIT	none	Context: 1,050,000 tokens Max input: 922,000 tokens Max output: 128,000 tokens	`input.text` claimed `input.image` claimed `input.pdf` claimed `output.text` claimed `tools` claimed `structured_output` claimed `reasoning` claimed `parallel_tools` claimed `tool_choice` claimed `prompt_caching` claimed `web_search` claimed
Amazon Bedrock	`global.openai.gpt-5.6-luna`	ga	Input: $0.2 Output: $1.2 Cache read: $0.02 Cache write (5 min): $0.25 Input, prompts over 272,000 tokens: $0.4 Output, prompts over 272,000 tokens: $1.8 Cache read, prompts over 272,000 tokens: $0.04 Cache write (5 min), prompts over 272,000 tokens: $0.5 Since 2026-11-03 · models.dev, MIT	none	Context: 1,050,000 tokens Max input: 922,000 tokens Max output: 128,000 tokens	`input.text` claimed `input.image` claimed `input.pdf` claimed `output.text` claimed `tools` claimed `structured_output` claimed `reasoning` claimed `tool_choice` claimed
Amazon Bedrock	`in.openai.gpt-5.6-luna`	ga	Input: $0.22 Output: $1.32 Cache read: $0.022 Cache write (5 min): $0.275 Input, prompts over 272,000 tokens: $0.44 Output, prompts over 272,000 tokens: $1.98 Cache read, prompts over 272,000 tokens: $0.044 Cache write (5 min), prompts over 272,000 tokens: $0.55 Since 2026-11-03 · models.dev, MIT	none	Context: 1,050,000 tokens Max input: 922,000 tokens Max output: 128,000 tokens	`input.text` claimed `input.image` claimed `input.pdf` claimed `output.text` claimed `tools` claimed `structured_output` claimed `reasoning` claimed
Amazon Bedrock	`openai.gpt-5.6-luna`	ga	Input: $0.22 Output: $1.32 Cache read: $0.022 Cache write (5 min): $0.275 Input, prompts over 272,000 tokens: $0.44 Output, prompts over 272,000 tokens: $1.98 Cache read, prompts over 272,000 tokens: $0.044 Cache write (5 min), prompts over 272,000 tokens: $0.55 Since 2026-11-03 · models.dev, MIT	none	Context: 1,050,000 tokens Max input: 922,000 tokens Max output: 128,000 tokens	`input.text` claimed `input.image` claimed `input.pdf` claimed `output.text` claimed `tools` claimed `structured_output` claimed `reasoning` claimed
Amazon Bedrock	`us.openai.gpt-5.6-luna`	ga	Input: $0.22 Output: $1.32 Cache read: $0.022 Cache write (5 min): $0.275 Input, prompts over 272,000 tokens: $0.44 Output, prompts over 272,000 tokens: $1.98 Cache read, prompts over 272,000 tokens: $0.044 Cache write (5 min), prompts over 272,000 tokens: $0.55 Since 2026-11-03 · models.dev, MIT	none	Context: 1,050,000 tokens Max input: 922,000 tokens Max output: 128,000 tokens	`input.text` claimed `input.image` claimed `input.pdf` claimed `output.text` claimed `tools` claimed `structured_output` claimed `reasoning` claimed `tool_choice` claimed
OpenAI	`gpt-5.6-luna`	ga	Input: $0.20 Output: $1.20 Cache read: $0.02 Cache write (5 min): $0.25 Input, prompts over 272,000 tokens: $0.40 Output, prompts over 272,000 tokens: $1.80 Cache read, prompts over 272,000 tokens: $0.04 Cache write (5 min), prompts over 272,000 tokens: $0.5 Input, flex tier: $0.10 Output, flex tier: $0.60 Cache read, flex tier: $0.01 Input, priority tier: $0.40 Output, priority tier: $2.40 Cache read, priority tier: $0.04 Since 2026-11-03 · Curated by Nanner Tech	none	Context: 1,050,000 tokens Max input: 922,000 tokens Max output: 128,000 tokens	`input.text` claimed `input.image` claimed `input.pdf` claimed `output.text` claimed `tools` claimed `structured_output` claimed `reasoning` claimed `parallel_tools` claimed `tool_choice` claimed `prompt_caching` claimed `web_search` claimed
OpenRouter	`openai/gpt-5.6-luna`	ga	Input: $0.2 Output: $1.2 Cache read: $0.02 Cache write (5 min): $0.25 Input, prompts over 272,000 tokens: $0.4 Output, prompts over 272,000 tokens: $1.8 Cache read, prompts over 272,000 tokens: $0.04 Cache write (5 min), prompts over 272,000 tokens: $0.5 Since 2026-11-03 · models.dev, MIT	none	Context: 1,050,000 tokens Max input: 922,000 tokens Max output: 128,000 tokens	`input.text` claimed `input.image` claimed `input.pdf` claimed `output.text` claimed `tools` claimed `structured_output` claimed `reasoning` claimed
OpenRouter	`openai/gpt-5.6-luna-pro`	ga	Input: $0.2 Output: $1.2 Cache read: $0.02 Cache write (5 min): $0.25 Input, prompts over 272,000 tokens: $0.4 Output, prompts over 272,000 tokens: $1.8 Cache read, prompts over 272,000 tokens: $0.04 Cache write (5 min), prompts over 272,000 tokens: $0.5 Since 2026-11-03 · models.dev, MIT	none	Context: 1,050,000 tokens Max input: 922,000 tokens Max output: 128,000 tokens	`input.text` claimed `input.image` claimed `input.pdf` claimed `output.text` claimed `tools` claimed `structured_output` claimed `reasoning` claimed

Quality scores

Basis	Score (0–1)	Raw	Measured	Source
`epoch:gpqa_diamond`	0.950	0.9160	2026-07-09	Epoch AI, CC-BY-4.0, normalized by Nanner Tech
`epoch:frontiermath`	0.876	0.8211	2026-07-09	Epoch AI, CC-BY-4.0, normalized by Nanner Tech
`curated`	0.600 (estimated)	0.6000	2026-11-02	Curated tier (estimated), Nanner Tech

Aliases

Other names the API accepts for this model.

global.openai.gpt-5.6-luna
gpt-5.6-luna
in.openai.gpt-5.6-luna
openai.gpt-5.6-luna
openai/gpt-5.6-luna-pro
us.openai.gpt-5.6-luna

Use it from the API

Look this model up, or ask for the best model for its task on the providers that offer it. See the quickstart and the API reference.

Look up this model

curl 'https://rhumbdata.com/v1/models/openai/gpt-5.6-luna' \
  -H "Authorization: Bearer $RHUMB_KEY"

Resolve text.chat on its providers

curl 'https://rhumbdata.com/v1/resolve?task=text.chat&providers=azure-openai,bedrock,openai,openrouter' \
  -H "Authorization: Bearer $RHUMB_KEY"

Built from catalog version 2026-11-04.3 of 2026-11-04. Prices are list prices per 1M tokens unless marked otherwise; every score shows its source's notice (see Attributions).