OpenAI
GPT-5.6 Luna
Cost-efficient GPT-5.6 model for fast, high-volume workloads
Model facts
- Context window
- 1.05M tokens
- Maximum output
- 128K tokens
- Cheapest paid input
- $0.1 per 1M tokens
- Cheapest paid output
- $0.6 per 1M tokens
- Open weights
- no
- Providers
- 45
Capabilities and modalities
reasoning, tool calling, structured output, attachments, temperature control, text, image, pdf.
Artificial Analysis benchmarks
Compare this model on the full LLM benchmark leaderboard.
| Configuration | AAI | Coding | Math | Output tokens/s |
|---|---|---|---|---|
| max | 52.3 | 71.4 | not measured | 116.2 |
| xhigh | 50.1 | 68.6 | not measured | 113.1 |
| high | 47.0 | 63.3 | not measured | 106.4 |
| medium | 38.9 | 50.7 | not measured | 106.2 |
| low | 33.9 | 44.2 | not measured | 111.6 |
| Non-reasoning | 26.8 | 39.3 | not measured | 107.6 |
Observed price history
- 2026-08-24: $0.1 input / $0.6 output per 1M tokens
- 2026-08-28: $0.2 input / $1.2 output per 1M tokens
- 2026-08-31: $0.1 input / $0.6 output per 1M tokens
API providers
- GitLab Duo (Agentic Chat) — model id duo-chat-gpt-5-6-luna; free input / free output per 1M tokens; provider documentation
- Kenari — model id gpt-5-6-luna; free input / free output per 1M tokens; provider documentation
- OpenRouter (batch) — model id openai/gpt-5.6-luna:batch; $0.1 input / $0.6 output per 1M tokens; provider documentation
- Amazon Bedrock (Global) — model id global.openai.gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- Azure — model id gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- Cloudflare AI Gateway — model id openai/gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- CrossModel — model id openai/gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- DevPass (LLM Gateway) — model id gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- DigitalOcean (OpenAI) — model id openai-gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- Eden AI — model id openai/gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- GitHub Copilot — model id gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- Impossibl — model id openai/gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- Kilo Gateway — model id openai/gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- Kilo Gateway — model id openai/gpt-5.6-luna-pro; $0.2 input / $1.2 output per 1M tokens; provider documentation
- LLM Gateway (Azure) — model id azure/gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- LLM Gateway (OpenAI) — model id openai/gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- Merge Gateway — model id openai/gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- NanoGPT — model id openai/gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- Neon — model id gpt-5-6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- Ofox — model id openai/gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- OpenAI — model id gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- OpenCode Go — model id gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- OpenCode Zen — model id gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- OpenRouter — model id openai/gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- Opper — model id openai/gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- OrcaRouter — model id openai/gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- Requesty — model id gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- Vercel AI Gateway — model id openai/gpt-5.6-luna; $0.2 input / $1.2 output per 1M tokens; provider documentation
- Cortecs — model id gpt-5.6-luna; $0.219 input / $1.32 output per 1M tokens; provider documentation
- Amazon Bedrock — model id openai.gpt-5.6-luna; $0.22 input / $1.32 output per 1M tokens; provider documentation
- LLM Gateway (AWS Mantle) — model id aws-mantle/gpt-5.6-luna; $0.22 input / $1.32 output per 1M tokens; provider documentation
- Requesty (EU) — model id gpt-5.6-luna@eu; $0.22 input / $1.32 output per 1M tokens; provider documentation
- Venice AI — model id openai-gpt-56-luna; $0.267 input / $1.6 output per 1M tokens; provider documentation
- Vercel AI Gateway — model id openai/gpt-5.6-luna-fast; $0.4 input / $2.4 output per 1M tokens; provider documentation
- routing.run — model id gpt-5.6-luna; $0.7 input / $4.2 output per 1M tokens; provider documentation
- AI-ROUTER — model id gpt-5.6-luna; $1 input / $6 output per 1M tokens; provider documentation
- AIHubMix — model id gpt-5.6-luna; $1 input / $6 output per 1M tokens; provider documentation
- Abacus — model id gpt-5.6-luna; $1 input / $6 output per 1M tokens; provider documentation
- Azure Cognitive Services — model id gpt-5.6-luna; $1 input / $6 output per 1M tokens; provider documentation
- Databricks — model id databricks-gpt-5-6-luna; $1 input / $6 output per 1M tokens; provider documentation
- Pioneer — model id gpt-5.6-luna; $1 input / $6 output per 1M tokens; provider documentation
- SAP AI Core — model id gpt-5.6-luna; $1 input / $6 output per 1M tokens; provider documentation
- Vivgrid — model id gpt-5.6-luna; $1 input / $6 output per 1M tokens; provider documentation
- ZenMux — model id openai/gpt-5.6-luna; $1 input / $6 output per 1M tokens; provider documentation
- Snowflake Cortex — model id openai-gpt-5.6-luna; not published input / not published output per 1M tokens; provider documentation