GPT-5.6 Luna
by OpenAIChat
Cost-efficient GPT-5.6 model for fast, high-volume workloads
- Context
- 1.05M tokens
- Max output
- 128,000 tokens
- Released
- 2026-07-09
- Weights
- Closed
openai/gpt-5-6-luna · also seen as openai/gpt-5.6-luna-pro, duo-chat-gpt-5-6-luna, databricks-gpt-5-6-luna, global.openai.gpt-5.6-luna, +17 more
Specifications
Full facts as recorded, incl. what is unknown.
- Released
- 2026-07-09
- Weights
- Closed
- Input
- Text, Image, PDF
- Output
- Text
- Context window
- 1,050,000 max across endpoints
- Max output
- 128,000
- Providers
- 20 + 31 gateways, not counted as providers
- Epoch Capabilities Index
- 156.3 ± 2.6 against price
- Direct price range
- $0.20–$0.26 in · $1.20–$1.56 out per 1M tokens · 15 of 20 providers have a comparable price
More details
- Last updated
- 2026-07-09
- Knowledge cutoff
- 2026-02-16
- Developer country
- United States of America
Capabilities
Across all endpoints: supported if any endpoint supports it.
- Tool calling
- Parallel tools
- Structured output
- Reasoning
- Image input
- PDF input
- Audio input
- Audio outputunknown
- Video input
- Prompt caching
- Web search
- Computer useunknown
- System messages
- Assistant prefillunknown
- Temperature
- Streaming
- Attachments
Endpoints
One row per provider and variant; gateways are listed separately.
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Price history
Atom feedNo change since 19 Oct 2026. The cheapest direct price has been $0.20 in / $1.20 out per 1M tokens at OpenAI on every data refresh since then.
Tracked from 19 Oct 2026. Headline-eligible direct prices only, so a price the sanity check flags never draws a spike. Series as JSON
Cost calculator
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Similarly priced models
Blended rate per 1M tokens, each at its own cheapest provider (10M input : 2M output mix).
| Model | Blended/1M | In/1M | Out/1M | Context | vs GPT-5.6 Luna |
|---|---|---|---|---|---|
| Hy-MT2-30B-A3BTencent | $0.111 | $0.074 | $0.295 | 8.2K | −1% cheaper |
| Hy-MT2-7BTencent | $0.111 | $0.074 | $0.295 | 8.2K | −1% cheaper |
| Tencent Hy-MT2-PlusTencent | $0.111 | $0.074 | $0.295 | 8.2K | −1% cheaper |
| Tencent Hy-MT2-ProTencent | $0.111 | $0.074 | $0.295 | 8K | −1% cheaper |
| DeepSeek V4.1 FlashDeepSeek | $0.113 | $0.075 | $0.30 | 1.05M | +1% |
| DeepSeek V4.1 Flash 1017DeepSeek | $0.113 | $0.075 | $0.30 | 1M | +1% |
| gemini 2.0 flash liteGoogle | $0.113 | $0.075 | $0.30 | 1M | +1% |
| Qwen3 32BAlibaba (Qwen) | $0.113 | $0.08 | $0.28 | 131K | +1% |
More from OpenAI
Newest OpenAI models in the catalogue. All OpenAI models
| Model | Released | Context | Listed price |
|---|---|---|---|
| GPT-6.1 Sol Ultrafast | 2026-10-08 | 1.05M | from $12 |
| GPT-6 Luna Decisions | 2026-10-06 | 1.05M | unpriced |
| GPT-6.1 Sol | 2026-09-29 | 1.05M | from $2.00 |
| GPT-6.1 Sol Pro | 2026-09-29 | 1.05M | from $2.00 |
| GPT-6 Luna | 2026-09-22 | 1.05M | from $0.10 |
| GPT-6 Sol | 2026-09-22 | 1.05M | from $2.00 |
| GPT-6 Sol Pro | 2026-09-22 | 1.05M | from $2.00 |
| GPT-6 Luna Pro | 2026-09-22 | 1.05M | from $0.10 |