GPT-5.6 Luna Pro
OpenAI · Proprietary · Released Jul 9, 2026 · openai/gpt-5.6-luna-pro
Best $0.20 in / $1.20 out via OpenAI
1.05M contextVisionToolsReasoningStructured outputPrompt caching
Available from 5 providersUSD / MTOK · PRICES 23 MINUTES AGO · SPEED 10 DAYS AGO
EST. MONTHLY COSTclick a row for detail · click headers to sort
| PROVIDER | INPUT | OUTPUT | CACHE | CONTEXT | QUANT | TTFT | TPS | UPTIME |
|---|---|---|---|---|---|---|---|---|
 OpenAIFLEX1ST PARTY | $0.10 | $0.60 | $0.01 | 1.05M | — | 7.4s | 1685 tok/s | 100.0% |
| OpenAI1ST PARTY | $0.20 | $1.20 | $0.02 | 1.05M | — | — | — | 100.0% |
 Azure | $0.20 | $1.20 | $0.02 | 1.05M | — | 6.7s | 5857 tok/s | 100.0% |
| Azure | $0.22 | $1.32 | $0.022 | 1.05M | — | — | — | 100.0% |
| OpenAIPRIORITY1ST PARTY | $0.40 | $2.40 | $0.04 | 1.05M | — | — | — | 100.0% |
TTFT/TPS: median (P50) over trailing 504h · chat10k profile (~10K in / 200 out) · measured via OpenRouter routing · methodology v1.1 · measured 10 days ago
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Pricing variants · USD / MTok in / out
STANDARD
$0.20 / $1.20
per MTok in / out
BATCH
$0.10 / $0.60
async batch
CACHE READ $0.02CACHE WRITE $0.25WEB SEARCH $0.01 / search
About
GPT-5.6 Luna Pro is the same underlying model as GPT-5.6 Luna, served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. **Cost note:** pro mode spends far more...
Specifications
Context window1,050,000
Max output128,000
Modalities infile, image, text
Modalities outtext
LicenseProprietary
ReleasedJul 9, 2026
Knowledge cutoff2026-02-16
TokenizerGPT
Related
Embed badge
[](https://modelindex.ai/models/openai/gpt-5.6-luna-pro)Sources
OpenRouter API23 minutes ago
AGGREGATORModelIndex benchmarks12 days ago
MEASUREDVerified 23 minutes ago · list prices, not negotiated rates.