GPT-5.6 Sol is the flagship model in OpenAI's GPT-5.6 series. It is suited for complex reasoning, coding, and agentic workflows, and is particularly strong at command-line and multi-step coding tasks...
At a glance
- Context window
- 1.1Mtokens
- Max output
- 128Ktokens
- Knowledge to
- 2026-02-16
- Released
- 2026
Capabilities
Benchmarks
- Intelligence index
- 47
- Coding index
- 77
- Agentic index
- 51
Standard evaluations
| Benchmark | Score | Tasks |
|---|---|---|
| gpqa_diamond | 0.92 | 396 |
| tau_bench_verified_airline | 0.77 | 100 |
Source: Artificial Analysis · as of Sep 16, 2026
Performance
Uptime on IranRouter
2.3%
Reference uptime
100%
Median latency
4,165 ms
Throughput
45.8 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
- #12
- Rank change, 7 days
- +1
Daily tokens · 90 days
149.1B
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-sol",
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.