Today's price · per 1M tokens
Input
$2.00
per 1M tokens
Output
$10.00
per 1M tokens
Blended
$4.00
blended $/1M — 3:1 weighted input:output
Cached input
$0.200
10% of input — prompt caching
How this price is scoped: Since GPT-6.1 Sol launched on 2026-09-29, OpenAI's rate card no longer prints a gpt-6-sol row; the tracked figures are the short-context (up to 272K input tokens) rates stated in the 2026-09-22 changelog entry. When the rate card last listed it (read 2026-09-23), longer prompts billed at $4 input / $0.40 cached input / $5 cache write / $15 output per 1M, and short-context cache writes at $2.50 per 1M. Regional (data-residency) endpoints carry a 10% uplift.
Price receipt
We read OpenAI's own pricing page on and found GPT-6 Sol: $2 input, $0.20 cached input, and $10 output. listed with a price on the same row — that read is where the number above comes from. We keep the page text we read; its content hash is 8c8b4e9778.
Overview
OpenAI's mid-priced GPT-6 reasoning tier, released 2026-09-22 alongside GPT-6 Luna and priced a fifth of GPT-6 Astra. 1.05M context window, text + image input, text output, served over the Responses and Chat Completions APIs. $2/$10 per 1M tokens (cached input $0.20). Succeeded on 2026-09-29 by GPT-6.1 Sol at the same $2/$10 with cached input at $0.10; GPT-6 Sol is still served and not on OpenAI's deprecations list.
Capabilities
struck through = not supportedBenchmark performance
accuracy % · higher is better- AA Intelligence Index: 47.6 (Artificial Analysis composite across reasoning, knowledge and coding evals)
- AA-Omniscience Index: 27.1 (−100–100)
- Ranks #56 of 98 benchmarked models by average score
- Ranks #12 of 191 comparably-measured models by percentile score, across 4 independent measurements
- Ranks #133 of 191 comparably-tested models by normalized performance per dollar
- Strongest at Terminal-Bench 2.1 — 83.2%, #11 of 48
Source: Vellum LLM Leaderboard · updated · See full rankings →
Specifications
- Provider
- OpenAI
- Context window
- 1M tokens
- Modality
- text, image
- Parameters
- Proprietary
- Open source
- No — proprietary
- Released
- Status
- Current
- Last updated
- Tags
Availability verified: — listed on OpenAI's own page