preview

GPT-5.6 Sol

openai/openai-gpt-5-6-sol

Prices

Input: $4.40 per 1M tokens
low
Input (>272k ctx): $8.80 per 1M tokens
low
Input (cache write, >272k ctx): $11.00 per 1M tokens
low
Input (cache write): $5.50 per 1M tokens
low
Input (cached read, >272k ctx): $0.88 per 1M tokens
low
Input (cached read): $0.44 per 1M tokens
low
Output: $22.00 per 1M tokens
low
Output (>272k ctx): $33.00 per 1M tokens
low
Web search (context size: high): $0.012 per query
low
Web search (context size: low): $0.012 per query
low
Web search (context size: medium): $0.012 per query
low

Specifications

Provider: openai
Context window: 1,050,000
Max output tokens: 128,000
Open weights: no
Released: 07/09/2026
Retires: no date announced
First seen by this tracker: 09/14/2026

Price history

Input — per 1M tokens

Recorded changes for Input
From	Amount
09/14/2026	5.5
09/19/2026	4.4

Input (>272k ctx) — per 1M tokens

Recorded changes for Input (>272k ctx)
From	Amount
09/14/2026	11
09/19/2026	8.8

Input (cache write) — per 1M tokens

Recorded changes for Input (cache write)
From	Amount
09/14/2026	6.88
09/19/2026	5.5

Input (cache write, >272k ctx) — per 1M tokens

Recorded changes for Input (cache write, >272k ctx)
From	Amount
09/14/2026	13.75
09/19/2026	11

Input (cached read) — per 1M tokens

Recorded changes for Input (cached read)
From	Amount
09/14/2026	0.55
09/19/2026	0.44

Input (cached read, >272k ctx) — per 1M tokens

Recorded changes for Input (cached read, >272k ctx)
From	Amount
09/14/2026	1.1
09/19/2026	0.88

Output — per 1M tokens

Recorded changes for Output
From	Amount
09/14/2026	33
09/19/2026	22

Output (>272k ctx) — per 1M tokens

Recorded changes for Output (>272k ctx)
From	Amount
09/14/2026	49.5
09/19/2026	33

No changes recorded

Web search (context size: high): 0.012 per query, unchanged since 09/14/2026
Web search (context size: low): 0.012 per query, unchanged since 09/14/2026
Web search (context size: medium): 0.012 per query, unchanged since 09/14/2026

Last updated 10/04/2026, 02:10