Verdict
o3-mini is behind the leaders: #217 of 406 by SIscope score. Strongest at following instructions, weaker at reasoning & knowledge.
SIscope score
44
#217 of 406
Human-vote rank
#222
of 419 · score 1337
Price per 1M tokens, blended
No price yet
Not listed on OpenRouter
Context window
No data yet
Speed: coming soon
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
Human-vote score over time
Text 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.
GPQA Diamond77%
PhD-level science multiple choice questions
Better than 53% of 333 tested models. Run Feb 13, 2025.
SimpleQA Verified15%
Short factual questions; rewards not making things up
Better than 9% of 100 tested models. Run Aug 31, 2026.
OTIS Mock AIME 2024-2577%
Competition maths problems in the style of AIME
Better than 56% of 313 tested models. Run Feb 27, 2025.
FrontierMath Tiers 1-319%
Very hard, unpublished research-style maths problems
Better than 20% of 122 tested models. Run Jun 11, 2026.
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 | #222 of 419 | 1337 | 1331–1342 | 18,589 | Oct 28, 2026 |
| WebDev arena Building web apps, blind human votes | Not on this board yet | ||||
| 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
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