GPT-5.6 Sol pricing and specs

Frontier GPT-5.6 model for complex professional work, coding, and agentic workflows

338 ₽input / 1M$4
1 690 ₽output / 1M$20
1.1Mcontexttokens
128Kmax outputtokens

GPT-5.6 Sol price per 1M tokens

Type₽ / 1M$ / 1M
Input tokens338 ₽$4
Output tokens1 690 ₽$20
Cache read33,8 ₽$0.4
Cache write423 ₽$5

Prices in rubles as of 18.09.2026 at the CBR rate: 1 $ = 84.51 ₽.

GPT-5.6 Sol specs and limits

Context window
1.1M
Max output
128K
Max input
922K
Input
text, image, pdf
Output
text
Family
gpt-sol
Released
2026-07-09
Updated
2026-07-09
Knowledge cutoff
2026-02-16
Also known as
chatgpt sol, chat gpt sol, openai sol, gpt sol, gpt-5 sol, o3 sol

What GPT-5.6 Sol can do

  • Reasoning
  • Tool calling
  • Structured output
  • Attachments / files
  • Vision (images)
  • Temperature control
  • Open weights

GPT-5.6 Sol benchmarks

BenchmarkScoreMetric
SWE-Bench Pro64.6resolve rate
Terminal-Bench88.8success rate
DeepSWE72.7resolve rate
GPQA Diamond94.6accuracy
FrontierMath89accuracy
BrowseComp90.4accuracy
OSWorld62.6success rate
MMMU Pro83accuracy
Agents' Last Exam52.7
Toolathlon58success rate
Artificial Analysis Intelligence Index58.9index score
Artificial Analysis Coding Agent Index80index score

Frequently asked questions

How much does the GPT-5.6 Sol API cost?

Input costs $4 per 1M tokens (338 ₽) and output costs $20 per 1M (1,690 ₽). OpenAI bills the prompt and the completion separately, so the price of a call depends on how long both are. Ruble figures use the Bank of Russia rate of 84.51 ₽ per dollar for September 2026.

How much do 1,000 GPT-5.6 Sol tokens cost?

List prices are quoted per 1M tokens, so 1,000 tokens cost a thousandth of that: divide $4 for input and $20 for output by 1,000. The same rates in rubles are 338 ₽ and 1,690 ₽ per 1M tokens. Both prompt tokens and completion tokens are billed.

How many tokens does GPT-5.6 Sol hold?

The GPT-5.6 Sol context window is 1.1M tokens (1,050,000). Everything shares that budget: the system prompt, the dialogue history, attached files and the answer the model writes. The figure comes from the OpenAI model card as of September 2026.

What are the GPT-5.6 Sol limits?

The context window is 1.1M tokens (1,050,000) and a single response is capped at 128K tokens, so longer output has to be generated in parts. Rate limits are set by OpenAI per account and depend on your plan rather than on the model, so they are not listed here.

How is the GPT-5.6 Sol price in rubles calculated?

Providers quote their tariffs in US dollars, so the ruble amounts here are a conversion at the official Bank of Russia rate of 84.51 ₽ per dollar. For GPT-5.6 Sol that gives 338 ₽ per 1M input tokens and 1,690 ₽ per 1M output tokens. When the rate moves, the ruble price moves with it.

How is GPT-5.6 Sol different from other ChatGPT models?

GPT-5.6 Sol belongs to the GPT Sol family at OpenAI. Models in the ChatGPT line differ in context size, price per 1M tokens and supported capabilities, so compare them by the numbers on their cards rather than by the name. Every ChatGPT model is listed on the provider page.

Can GPT-5.6 Sol reason?

Yes, GPT-5.6 Sol declares a reasoning mode: it works through intermediate steps before it answers. Those steps add output tokens, so a call with a long reasoning chain costs more and takes longer than a plain completion. Capabilities declared for the model: reasoning, tool calling, image input, structured output.

What capabilities does GPT-5.6 Sol support?

The declared capabilities of GPT-5.6 Sol are: reasoning, tool calling, image input, structured output. It accepts text, images, PDF as input, and every attachment consumes tokens from the shared context window of 1.1M tokens. The list comes from the OpenAI model card and is refreshed with the catalog as of September 2026.

Other OpenAI models