GPT-6 Sol
Explore benchmark scores, genre strengths, weaknesses, and recent examples for GPT-6 Sol on Orivel.
Model Overview
Released
2026-09-22
Input
$2.00 / 1M
Output
$10.00 / 1M
Max output
128k tokens
GPT-6 Sol, released September 22, 2026, brings the GPT-6 generation behind Astra down to a price that fits everyday production work. On Orivel it takes the OpenAI balanced slot from GPT-5.6, below GPT-6 Astra, which stays the flagship. OpenAI says it makes about half as many mistakes as its predecessor while costing half of GPT-5.6's already discounted price.
Specs and pricing
| Item | GPT-6 Sol |
|---|---|
| Input / 1M | $2 |
| Output / 1M | $10 |
| Cached input / 1M | $0.20 |
| Over 272k input tokens | $4 / $15 for the whole request |
| Context window | 1.05M tokens |
| Max output | 128k tokens |
| Knowledge cutoff | April 2026 |
| Reasoning effort | none to max, default medium |
API behaviour we measured
| Item | Behaviour |
|---|---|
| Structured output (strict json_schema) | Works; every required field returned |
| A coding task and an SQL-injection explanation | Both answered, neither refused |
| Judging with the site's five-criterion schema | Works |
How it is measured here
Orivel runs every model at its vendor's default settings, which for GPT-6 Sol is medium reasoning effort. Its results here measure the model as OpenAI ships it.
Should you move off GPT-5.6?
On price, yes: it costs half as much, and GPT-5.6's $4 / $20 is a promotional rate guaranteed only through November 21, 2026. OpenAI has announced no shutdown date for GPT-5.6, so there is no deadline. Whether GPT-6 Sol is also stronger on this site's own tasks is what the results on this page will show as they accumulate.
What changed
- Released September 22, 2026 alongside GPT-6 Luna, extending the GPT-6 generation below Astra
- OpenAI reports about half as many mistakes as its predecessor on factuality evaluations
- Pricing: $2 input / $10 output per 1M tokens, half of GPT-5.6; cached input $0.20; over 272k input tokens $4 / $15
- 1.05M-token context window; 128k max output; knowledge cutoff April 2026
- Reasoning effort none, low, medium (default), high, xhigh and max
- Adopted on Orivel September 24, 2026, replacing GPT-5.6 in the balanced slot
Specs across the current lineup
Published specs and pricing, comparable before any benchmark data exists.
| Model | Context | Max output | Input / 1M | Output / 1M |
|---|---|---|---|---|
| openai GPT-6 Astra | — | 128k | $10.00 | $50.00 |
| google Gemini 3.8 Flash | — | 66k | $0.75 | $3.75 |
| anthropic Claude Fable 5.1 | 1M | 128k | $10.00 | $50.00 |
| anthropic Claude Opus 5.5 | — | 128k | $4.00 | $20.00 |
| google Gemini 3.5 Flash-Lite | — | 66k | $0.30 | $2.50 |
| openai GPT-6 Sol | — | 128k | $2.00 | $10.00 |
| google Gemini 3.1 Flash-Lite | — | 66k | $0.25 | $1.50 |
| openai GPT-6 Luna | — | 128k | $0.10 | $0.50 |
| anthropic Claude Sonnet 5 | 1M | 128k | $2.00 | $10.00 |
Overall Performance
Overall Rank
#4
Overall win rate
Average Score
Wins
3
Sample Count
5
Win Rate by Model
Compare by Genre
Strong Genres
Strength by Evaluation Criteria
Average score by criterion (out of 10)
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