GPT-5.6 Luna is a fast, cost-efficient model in OpenAI's GPT-5.6 series. It is suited for high-volume, latency-sensitive tasks such as chat, classification, and lightweight agentic workflows, providing capable reasoning for...
At a glance
- Context window
- 1.1Mtokens
- Max output
- 128Ktokens
- Knowledge to
- 2026-02-16
- Released
- 2026
Capabilities
Benchmarks
- Intelligence index
- 38
- Coding index
- 71
- Agentic index
- 43
Standard evaluations
| Benchmark | Score | Tasks |
|---|---|---|
| gpqa_diamond | 0.88 | 396 |
| tau_bench_verified_airline | 0.71 | 100 |
Source: Artificial Analysis · as of Sep 16, 2026
Performance
Uptime on IranRouter
9.5%
Reference uptime
100%
Median latency
3,365 ms
Throughput
54.2 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
- #5
- Rank change, 7 days
- -3
Daily tokens · 90 days
895.6B
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",
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.