gpt-5.6-luna
OpenAIdevelopers.openai.com/api/docs/models/gpt-5.6-lu
GPT-5.6 model optimized for cost-sensitive workloads
Updated 43 min ago · first seen 11 Sept 2026
model_01M293V76ZRTWE98GJGHREAFGX
- Context
- 1.05M tokens
- T1 · 1 h ago
- Released
- 9 Jul 2026
- T2 · 43 min ago
- Knowledge cutoff
- Feb 2026
- T1 · 1 h ago
Specification
- Release date
- 9 Jul 2026
Source:OpenRouter public model & pricing listingT2observed 43 min agomedium
- Openness
- proprietary
Source:OpenAI Platform docsT1observed 1 h agohigh
- Context window
- 1.05M tokens
Source:OpenAI Platform docsT1observed 1 h agohigh
- Max output
- 128K tokens
Source:OpenAI Platform docsT1observed 1 h agohigh
- Knowledge cutoff
- Feb 2026
Source:OpenAI Platform docsT1observed 1 h agohigh
- Modalities
- image, text
Source:OpenAI Platform docsT1observed 1 h agohigh
- Input modalities
- text, image
Source:OpenAI Platform docsT1observed 1 h agohigh
- Output modalities
- text
Source:OpenAI Platform docsT1observed 1 h agohigh
- Tokenizer
- GPT
Source:OpenRouter public model & pricing listingT2observed 43 min agomedium
- API model id
- gpt-5.6-luna
Source:OpenAI Platform docsT1observed 1 h agohigh
- Official page
Source:OpenAI Platform docsT1observed 1 h agohigh
- Capabilities
- streaming, structured_outputs, function_calling, file_search, image_input, web_search, prompt_caching
Source:OpenAI Platform docsT1observed 1 h agohigh
- Default snapshot
- gpt-5.6-luna
Source:OpenAI Platform docsT1observed 1 h agohigh
- File input
- Yes
Source:OpenRouter public model & pricing listingT2observed 43 min agomedium
- Openrouter id
- openai/gpt-5.6-luna
Source:OpenRouter public model & pricing listingT2observed 43 min agomedium
- Snapshots
- gpt-5.6-luna
Source:OpenAI Platform docsT1observed 1 h agohigh
- Supported parameters
- include_reasoning, max_completion_tokens, max_tokens, reasoning, reasoning_effort, response_format, seed, structured_outputs, tool_choice, tools
Source:OpenRouter public model & pricing listingT2observed 43 min agomedium
Each value shows its source, tier and observation time. Conflicting claims are kept side by side and flagged — never averaged. How AI Atlas records facts →
Provenance
Attributed facts
23
Source tiers
T1T217 / 6
Freshest observation
43 min ago
Conflicts
1 flagged
Modalities
- Modalities
- imagetext
- Input
- textimage
- Output
- text
Capabilities
Tool calling
Yes
OpenAI Platform docs · T1
Structured output
Yes
OpenAI Platform docs · T1
Reasoning
Yes
OpenRouter public model & pricing listing · T2
Vision
Yes
OpenAI Platform docs · T1
Audio
Unavailable
Fine-tuning available
No
OpenAI Platform docs · T1
- Context window
- 1.05M tokens
Source:OpenAI Platform docsT1observed 1 h agohigh
- Max output
- 128K tokens
Source:OpenAI Platform docsT1observed 1 h agohigh
- Knowledge cutoff
- Feb 2026
Source:OpenAI Platform docsT1observed 1 h agohigh
- Tokenizer
- GPT
Source:OpenRouter public model & pricing listingT2observed 43 min agomedium
No benchmark results recorded
Current prices
| Provider | Input / 1M | Output / 1M | Cached in | Batch in / out | Context | Observed | Source |
|---|---|---|---|---|---|---|---|
| OpenAI APIopenai/gpt-5.6-luna:batch | $0.10 | $0.60 | $0.01 | — | 1.05M | 43 min ago | openrouter.aiT2 |
| OpenAI APIgpt-5.6-luna | $0.20 | $1.2 | $0.02 | $0.10 / $0.60 | — | 1 h ago | developers.openai.comT1 |
| OpenAI APIopenai/gpt-5.6-luna | $0.20 | $1.2 | $0.02 | — | 1.05M | 43 min ago | openrouter.aiT2 |
USD per 1M tokens as published by each provider (USD). Rows are append-only: every change is kept in the history below.
Available through 1
Price history
Input price · USD / 1M tokens
Output price · USD / 1M tokens
- OpenAI API
No hardware estimate available
No lineage recorded
Papers 0
No papers linked yet.
Repositories 0
No repositories linked yet.
As of
Rewind the record: see this entity's attributes exactly as AI Atlas knew them on a given day.
Claim history · Max output
Max outputmax_output_tokens1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| 128K tokens | → current | current | OpenAI Platform docsT1 | high | deterministic |
Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →
OpenAI API lists gpt-5.6-luna at $0.1 in / $0.6 out per 1M tokens
openrouterOpenAI API lists gpt-5.6-luna at $0.2 in / $1.2 out per 1M tokens
openrouterOpenAI API lists gpt-5.6-luna at $0.2 in / $1.2 out per 1M tokens
openai
| Source | Document | Type | Tier | Last observed | Snapshots |
|---|---|---|---|---|---|
| OpenAI Platform docs | developers.openai.com/api/docs/deprecations.md | model_docs | T1· Official | 50 min ago | 1 |
| OpenAI Platform docs | developers.openai.com/api/docs/pricing.md | pricing | T1· Official | 50 min ago | 1 |
| OpenAI Platform docs | developers.openai.com/api/docs/models.md | model_docs | T1· Official | 50 min ago | 1 |
| OpenAI Platform docs | developers.openai.com/api/docs/models/gpt-5.6-luna.md | model_page | T1· Official | 1 h ago | 1 |
| OpenRouter public model & pricing listing | openrouter.ai/api/v1/models | catalogue | T2· Quality secondary | 43 min ago | 1 |
Tier 1 = official/primary, 2 = quality secondary, 3 = community, 4 = unverified. Every snapshot is archived; see all sources and the methodology.