Leaderboard / OpenAI
GPT-5.6 Sol
OpenAI xHigh, Codex Harness CLOSED Proprietary
Other settings:xHigh · 88
Verdict
GPT-5.6 Sol doesn't have enough test coverage for an overall SIscope score yet. On the pricey side: costs more than 89% of priced models.
SIscope score
No score yet
25% coverage, needs 70%
Human-vote rank
Not on board
Text arena
Price per 1M tokens, blended
$8
$4 in · $20 out
Context window
1.1M
1,050,000 tokens
Shape
Each spoke is a category, 0 at the centre, 100 at the edge.
Category scores
Percentiles: 90 means better than about 90% of tested models.
What goes into each category · Compare with DeepSeek V4.1 Flash
Coding votes over time
WebDev arena, recent updates.
Independent test runs
Run by Epoch AI on the same harness for every model. Bars show the share of questions answered correctly.
No Epoch AI runs for this model yet.
Human-vote arenas
People compare two anonymous answers and pick the better one. Scores work like chess ratings.
| Arena | Rank | Score | Range (95%) | Votes | Updated |
|---|---|---|---|---|---|
| Text arena Everyday chat, blind human votes | Not on this board yet | ||||
| WebDev arena Building web apps, blind human votes | #31 of 152 | 1616 | 1610–1622 | 18,884 | Oct 28, 2026 |
| Vision arena Questions about images, blind human votes | Not on this board yet | ||||
| Agent arena Real multi-step agent sessions | Not on this board yet | ||||
Source: Arena (formerly LMArena) leaderboard dataset, CC BY 4.0. Fetched Nov 4, 2026.
Price
Input
$4
per 1M tokens
Output
$20
per 1M tokens
Blended
$8
3 in : 1 out, per 1M
Context window
1.1M
max tokens per request
Speed
Coming soon
our own tests
List price from the OpenRouter models API (openai/gpt-5.6-sol), Nov 4, 2026. Providers can charge differently.