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OpenAI: GPT-5.6 Sol Pro

openai/gpt-5-6-sol-pro
CompareAPITry this model

GPT-5.6 Sol Pro is the same underlying model as [GPT-5.6 Sol](https://openrouter.ai/openai/gpt-5.6-sol), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks.

Modalities
In / out per 1M$4.00 / $20
Context1M
ReleasedJul 9, 2026

Providers

5 providers serve this model upstream.

Providers serving this model
ProviderInput /MOutput /MCache read /MLatency P50Throughput P50Uptime
OpenAI$4.00$20$0.409.81s163 tps100%
Azure$4.00$20$0.4014.04s107 tps54.95%
OpenAI$2.00$10$0.20———
Azureswedencentral$4.40$22$0.442.76s44 tps—
OpenAI$8.00$40$0.801.91s45 tps—

Market-wide measurements, refreshed every 15 minutes. They describe who serves GPT-5.6 Sol Pro in general, not how ProjectCOZY routes your requests.

Pricing

List rates per 1M tokens — what GPT-5.6 Sol Pro costs pay-as-you-go elsewhere, not what you pay here.

Input
$4.00
per 1M tokens
Output
$20
per 1M tokens
Cache read
$0.40
per 1M cached tokens
Included in every pass
GPT-5.6 Sol Pro is included in every ProjectCOZY pass at no extra cost — one flat rate, no per-token metering. The rates above are there for comparison.

Performance

Time to first token and output speed across every provider, over the last 3 days.

0.0s10.0s20.0s30.0s40.0s
Oct 16, 12 AMOct 16, 8 AMOct 16, 4 PMOct 17, 12 AMOct 17, 8 AMOct 17, 4 PMOct 18, 12 AMOct 18, 8 AMOct 18, 4 PMOct 19, 1 AMOct 19, 9 AM
OpenAI OpenAI Azure
0 tok/s100 tok/s200 tok/s300 tok/s400 tok/s
Oct 16, 12 AMOct 16, 8 AMOct 16, 4 PMOct 17, 12 AMOct 17, 8 AMOct 17, 4 PMOct 18, 12 AMOct 18, 8 AMOct 18, 4 PMOct 19, 1 AMOct 19, 9 AM
OpenAI OpenAI Azure

Uptime

100% of requests were served successfully over the last 3 days, across all providers.

Last 3 daysAvailability 97.84%
Oct 16, 11:00 AMNow
Availability over the last 24 hoursAvailability 96.89%
100% 66% 33% 0%
Oct 18, 11:40 AMNow

Apps

Tools that most often run GPT-5.6 Sol Pro, by tokens this week.

Hermes AgentPersonal Agent · 60.7% of tokens18.1BCodexCli Agent · 13.6% of tokens4.1BompCli Agent · 11.3% of tokens3.4BpiCli Agent · 7.7% of tokens2.3BGajae-CodeCli Agent · 6.7% of tokens2.0B

Activity

139.0B tokens processed market-wide in the last month.

010.0B20.0B30.0B40.0B
Sep 19Sep 24Sep 29Oct 4Oct 9Oct 14Oct 19
Tokens

FAQ

Which model id do I use for GPT-5.6 Sol Pro?
openai/gpt-5.6-sol-pro. Send it as the model field from any OpenAI-compatible client, against http://192.168.1.55/v1.
How much context does GPT-5.6 Sol Pro hold?
1,050,000 tokens per request, of which up to 128,000 can be the response.
What can it accept and return?
Input: file, image, text. Output: text.
What does GPT-5.6 Sol Pro cost on a pass?
Nothing beyond the pass itself. Pay-as-you-go elsewhere it lists at $4.00 per 1M input tokens and $20 per 1M output tokens.
How current is its knowledge?
Training data runs to Feb 2026. Anything later has to come from your prompt or a tool call.
Who built GPT-5.6 Sol Pro?
OpenAI, in the GPT family.

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