GPT-5.6 Luna Pro is the same underlying model as [GPT-5.6 Luna](https://openrouter.ai/openai/gpt-5.6-luna), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode
At a glance
- Context window
- 1.1Mtokens
- Max output
- 128Ktokens
- Knowledge to
- 2026-02-16
- Released
- 2026
Capabilities
Benchmarks
Standard evaluations
| Benchmark | Score | Tasks |
|---|---|---|
| gpqa_diamond | 0.9 | 396 |
| tau_bench_verified_airline | 0.71 | 100 |
as of Sep 16, 2026
Performance
Reference uptime
100%
Median latency
13,621 ms
Throughput
115.7 tok/s
IranRouter uptime comes from our own automated probes; the reference figures are daily measurements of this model's upstream routes. Each card shows a 30-day average, and a day without data stays empty.
Popularity
- Current rank
- #44
- Rank change, 7 days
- -4
Daily tokens · 90 days
66.3B
Ranked by daily token volume across the global model market; the figure above the chart is the daily average.
Supported parameters
Parameters this model accepts; anything else is ignored.
Quick start
from openai import OpenAI
client = OpenAI(
api_key="ir-...",
base_url="https://iranrouter.com/v1",
)
resp = client.chat.completions.create(
model="openai/gpt-5.6-luna-pro",
messages=[{"role": "user", "content": "سلام!"}],
)
print(resp.choices[0].message.content)Only base_url and the key change; the rest of your code stays as it is.