GPT-6 Sol is priced at $2 per million input tokens and $10 per million output tokens, down from $4 and $20, which OpenAI calls a 50 percent cut compared with GPT-5.6 promotional pricing.

The story was corrected

• 2026-10-03

  The first key point said GPT-6 Sol was down from $4 and $20. Those were GPT-5.6 Sol's promotional prices, not an earlier GPT-6 Sol price. It now says so.

  Why we corrected it: The key point dropped the condition our checked claim carries: the cut is measured against GPT-5.6 promotional pricing.

  What it said before: GPT-6 Sol costs $2 per million input tokens and $10 per million output tokens, down from $4 and $20.

The fact above is as the story now says it. All corrections

The exact words it rests on

GPT-5.6 Sol → GPT-6 Sol: $4 → $2 input, $20 → $10 output. Prices are per 1 million tokens. ... reducing API prices for Sol and Luna by 50% compared with their GPT-5.6 promotional pricing.

What the source said when we opened it, on 28 Sep 2026.

The source

Introducing GPT-6 Sol and Luna
OpenAI · 2026-09-22

Open the sourcearchived copy

Checked

Checked by the notis newsroom on 28 Sep 2026, against the source above.

The number in it

• $2 · GPT-6 Sol, price per million input tokens
• $10 · GPT-6 Sol, price per million output tokens

In the story

OpenAI cuts GPT-6 Sol and Luna API prices against GPT-5.6 promotional rates 28 Sep 2026