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GPT-5.6 Luna (OpenAI)
openai·openai/gpt-5.6-luna-2·GA·Closed·gpt-luna series·NEW
Cost-efficient GPT-5.6 model for fast, high-volume workloads
At a glance
Reference price$0.20 / $1.20 per 1M
Cache read $0.02 · LLM Gateway
Lowest paid$0.20 / $1.20
LLM Gateway Gateway
Context1,050,000
Output limit128,000
Capabilities
✓ Reasoning✓ Tool use✓ Structured outputTemperature✓ Attachments
Modalities
TextImagePDF
Knowledge cutoff2026-02-16
Released / updated2026-07-09 / 2026-07-09
Quality & performance
Artificial Analysis doesn't cover this model (267 of 2059 have data). Quality data comes from independent evals covering widely used models.
Available at 1 providers1 with public prices
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| LLM Gateway openai/gpt-5.6-luna | Gateway | $0.20 | $1.20 | $0.02 | $0.25 | 1,050,000 | 128,000 |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Your usage cost
1LLM Gateway$78.40
The cheapest paid channel is the only channel.
Benchmark
No upstream benchmark data for this model. For quality, see the Artificial Analysis intelligence score above.
Reasoning control
effort = noneeffort = loweffort = mediumeffort = higheffort = xhigheffort = max
Related models
GPT-5.6 Lunasame series$0.20 / $1.20GPT-5.6 Luna Prosame series$1.25 / $7.50GPT-5.6 Luna (Global)same series$0.22 / $1.32DeepSeek V4 Flashcheaper alternative$0.14 / $0.28MiMo-V2.5cheaper alternative$0.14 / $0.28Gemini 2.5 Flash-Litecheaper alternative$0.10 / $0.40Qwen Pluscheaper alternative$0.115 / $0.287
Price historyone sample accumulated per data sync
Input listOutput listMin blended