Verdict
OpenChat 3.5 is behind the leaders: #355 of 406 by SIscope score. Even across the board, with no weak spot in what's been tested. Weights are open, so you can run it yourself.
SIscope score
12
#355 of 406
Human-vote rank
#366
of 419 · score 1107
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.
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.
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 | #366 of 419 | 1107 | 1099–1115 | 12,637 | 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
No public list price yet. We only show prices from the OpenRouter models API, and this model isn't listed there under a matching name.