# GPT-5.6 Sol Pro API prices

GPT-5.6 Sol Pro (gpt-sol) — 1.1M context, 128k max output.
4 metered per-token offers from 4 provider(s), in USD per 1M tokens.
Prices as of 2026-10-04.

| Provider | Input $/1M | Output $/1M | Cache read $/1M | Context |
| --- | --- | --- | --- | --- |
| NanoGPT | $2 | $10 | $0.2 | 1.1M |
| OpenRouter | $4 | $20 | $0.4 | 1.1M |
| Venice AI | $5 | $25 | $0.5 | 1.0M |
| 302.AI | $5 | $30 | — | 1.1M |

## Summary

- Cheapest input: $2 per 1M tokens (NanoGPT)
- Cheapest output: $10 per 1M tokens (NanoGPT)
- First-party: not listed separately
- Free offers: none
- Subscription plans (not per-token): none
- Released: 2026-07-09
- Inputs: image, pdf, text

## 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.

HTML page: https://sovyron.com/models/gpt-5-6-sol-pro/
Full dataset: https://sovyron.com/data/catalog.json