OpenAIGPT-5.6 Sol pricing
$4.00 per 1M input tokens and $20.00 per 1M output tokens. In real work that is 2.4¢ per chat answer and 6.3¢ to summarize a 20-page PDF.
What GPT-5.6 Sol costs per task
Token counts estimated from a measured model of the same lab (GPT-6 Luna), rescaled by tokenizer. Reasoning tokens are billed as output.
| Task | Cost | Tokens used | Price rank | Basis |
|---|---|---|---|---|
| Answer a chat question | 2.4¢$23.76 / 1,000 | 45 in · 540 out · 639 reasoning | 311 of 336 | estimated |
| Reply to a customer email | 0.29¢$2.91 / 1,000 | 258 in · 94 out | 254 of 336 | estimated |
| Write a 1,500-word blog post | 4.7¢$47.44 / 1,000 | 59 in · 2,217 out · 143 reasoning | 295 of 336 | estimated |
| Write 10 product descriptions | 2.2¢$21.55 / 1,000 | 283 in · 987 out · 34 reasoning | 272 of 336 | estimated |
| Translate 1,000 words | 3.3¢$33.22 / 1,000 | 1,330 in · 1,328 out · 67 reasoning | 280 of 336 | estimated |
| Proofread one page (500 words) | 1.8¢$17.97 / 1,000 | 718 in · 664 out · 91 reasoning | 294 of 336 | estimated |
| Summarize a 20-page PDF | 6.3¢$62.61 / 1,000 | 12,987 in · 449 out · 84 reasoning | 303 of 336 | estimated |
| Extract data from an invoice | 1.3¢$12.73 / 1,000 | 373 in · 422 out · 140 reasoning | 290 of 336 | estimated |
| Analyze a 200-row spreadsheet | 7.5¢$75.00 / 1,000 | 4,779 in · 456 out · 2,338 reasoning | 263 of 336 | estimated |
| Answer from 5 retrieved documents (RAG) | 2.2¢$21.52 / 1,000 | 3,690 in · 234 out · 104 reasoning | 281 of 336 | estimated |
| Classify 100 support tickets | 2.6¢$25.74 / 1,000 | 1,261 in · 445 out · 590 reasoning | 277 of 336 | estimated |
| Review 500 lines of code | 12¢$123 / 1,000 | 4,557 in · 337 out · 4,921 reasoning | 298 of 336 | estimated |
| Write a SQL query | 1.6¢$16.14 / 1,000 | 126 in · 266 out · 516 reasoning | 295 of 336 | estimated |
| Run a 50-step coding agent | $1.63$1,628 / 1,000 | 2,237,500 in · 15,000 out · 7,000 reasoning | 270 of 336 | modeled |
Price at every provider
List prices per 1M tokens (input / output) at each host serving GPT-5.6 Sol through OpenRouter today. Hosts can differ in quantization, context and speed.
| Provider | Input / output | Cached input | Context | Uptime |
|---|---|---|---|---|
OpenAIunknown | $2.00 / $10.00 | $0.20 | 1.05M | 100% |
 Azureunknown | $4.00 / $20.00 | $0.40 | 1.05M | 100% |
OpenAIunknown | $4.00 / $20.00 | $0.40 | 1.05M | 100% |
Azureunknown | $4.40 / $22.00 | $0.44 | 1.05M | 100% |
 Amazon Bedrockunknown | $4.40 / $22.00 | $0.44 | 1.05M | |
Azureunknown | $4.40 / $22.00 | $0.44 | 1.05M | |
OpenAIunknown | $8.00 / $40.00 | $0.80 | 1.05M |
Price history
First seen in our price history on Jul 17, 2026 at $5.00 input / $30.00 output. Since then the output price moved from $30.00 to $20.00 per 1M tokens (3 changes).
FAQ
How much does GPT-5.6 Sol cost?
GPT-5.6 Sol costs $4.00 per 1 million input tokens and $20.00 per 1 million output tokens, with cached input at $0.40 (list price on Oct 18, 2026). In practice one chat answer costs about 2.4¢ and summarizing a 20-page PDF about 6.3¢.
Where is GPT-5.6 Sol cheapest?
Among 7 providers we track, the lowest list price today is at OpenAI: $2.00 input and $10.00 output per 1M tokens.
Does GPT-5.6 Sol charge for reasoning tokens?
Yes. Reasoning (thinking) tokens are billed as output tokens. That is why the cost per task can be much higher than the visible answer suggests - our task costs include them.
Is the GPT-5.6 Sol cost per task measured or estimated?
Estimated: GPT-5.6 Sol was not run directly. Tokens come from GPT-6 Luna and are rescaled by the tokenizer of OpenAI. Real usage can differ.