GPT-5.6 Sol Pro
As of Oct 4, 2026, the cheapest GPT-5.6 Sol Pro API price is $2 per 1M input tokens (NanoGPT) and $10 per 1M output tokens (NanoGPT). GPT-5.6 Sol Pro is offered by 4 providers in the gpt-sol family, reasoning enabled.
API pricing by provider
Metered per-token prices. Cheapest input and output are highlighted; † marks a context-tier surcharge. How prices are ranked.
| NanoGPT | Cheapest$2 | Cheapest$10 | $0.2 | $2.5 | 1.1M | — |
| OpenRouter | †$4 | $20 | $0.4 | $5 | 1.1M | 5d agoout +100% |
| Venice AI | †$5 | $25 | $0.5 | $6.25 | 1.0M | 15d agoout +100% |
 302.AI | $5 | $30 | — | — | 1.1M | — |
GPT-5.6 Sol Pro pricing FAQ
What is the cheapest GPT-5.6 Sol Pro API?
As of Oct 4, 2026, NanoGPT has the lowest GPT-5.6 Sol Pro output price at $10 per 1M tokens, and NanoGPT has the lowest input price at $2 per 1M tokens. Prices are metered per-token rates in USD; free tiers and subscription plans are excluded.
How many providers offer GPT-5.6 Sol Pro?
4 providers list GPT-5.6 Sol Pro on Sovyron; 4 of them sell it at a metered per-token price.
Is GPT-5.6 Sol Pro free?
No provider in the Sovyron catalog lists a free tier for GPT-5.6 Sol Pro.
What is the context window of GPT-5.6 Sol Pro?
GPT-5.6 Sol Pro supports a 1.1M-token context window and up to 128k output tokens.
Token cost calculator
What a month costs at one provider's published rates. Enter the tokens you expect to send and receive; cached tokens use the cached-input price where the provider lists one, and count as ordinary input where it does not.
Estimated
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