# GPT-5.6 Sol drops to conditional: GPT-6 Sol lists at half the price

OpenAI's pricing page lists GPT-6 Sol and GPT-6.1 Sol at $2/$10 per 1M tokens, half GPT-5.6 Sol's promotional $4/$20. We are moving GPT-5.6 Sol from recommended to conditional.

By Neomanex. Updated 2026-10-31.

**Verdict: [GPT-5.6 Sol](/models/gpt-5-6-sol) moves from recommended to conditional.** It is no longer the value pick. New workloads should test [GPT-6 Sol](/models/gpt-6-sol) first; [GPT-6.1 Sol](/models/gpt-6-1-sol) lists at the same price.

## What happened

OpenAI's API pricing page and changelog, read on 31 October 2026, show:

- **GPT-6 Sol lists at $2 input / $10 output per 1M tokens** for prompts up to 272K tokens. The changelog dates its release to 22 September 2026.
- **GPT-6.1 Sol also lists at $2 / $10.**
- **GPT-5.6 Sol lists at $4 / $20.** OpenAI states this is promotional pricing, available at least through 21 November 2026.

The changelog carries no deprecation notice for any of these models.

## Why it matters

On 23 September we held GPT-5.6 Sol at recommended. Its coding lead had third-party backing, while every GPT-6 Sol score was OpenAI's own. That reasoning still holds for teams already running GPT-5.6 Sol on validated evals.

It no longer holds for new deployments chosen on price. The successor costs half per token, and GPT-5.6 Sol's own $4/$20 rate is promotional, so OpenAI guarantees it only through 21 November 2026.

What we have not tested: we have not benchmarked GPT-6 Sol or GPT-6.1 Sol ourselves, and we record no absolute scores for GPT-6.1 Sol. We make no claim that GPT-6 Sol matches GPT-5.6 Sol on coding. Both successors stay conditional in our directory for that reason.

## What changes for you

- **Already on GPT-5.6 Sol with validated evals:** nothing forces a move. Run those evals on GPT-6 Sol before 21 November 2026, when the promotional window can close.
- **Starting new work:** test GPT-6 Sol at $2/$10 first, and keep GPT-5.6 Sol as the fallback only if your evals show a coding gap.

Canonical: https://neomanex.com/news/gpt-5-6-sol-conditional-gpt-6-sol-half-price