Verdict
GPT-5 is a solid mid-pack model: #129 of 406 by SIscope score. Strongest at reasoning & knowledge, weaker at coding. Mid-range on price.
SIscope score
62
#129 of 406
Human-vote rank
#147
of 419 · score 1406
Price per 1M tokens, blended
$3.44
$1.25 in · $10 out
Context window
400K
400,000 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
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 Diamond86%
PhD-level science multiple choice questions
Better than 72% of 333 tested models. Run Oct 29, 2025.
SimpleQA Verified50%
Short factual questions; rewards not making things up
Better than 73% of 100 tested models. Run Aug 27, 2026.
OTIS Mock AIME 2024-2591%
Competition maths problems in the style of AIME
Better than 75% of 313 tested models. Run Oct 29, 2025.
FrontierMath Tiers 1-355%
Very hard, unpublished research-style maths problems
Better than 59% of 122 tested models. Run Jun 10, 2026.
SWE-bench Verified74%
Fixing real GitHub issues in Python repositories
Better than 44% of 35 tested models. Run Feb 6, 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 | #147 of 419 | 1406 | 1402–1411 | 31,718 | Oct 28, 2026 |
| WebDev arena Building web apps, blind human votes | Not on this board yet | ||||
| Vision arena Questions about images, blind human votes | #90 of 167 | 1208 | 1201–1215 | 34,445 | Oct 19, 2026 |
| 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
$1.25
per 1M tokens
Output
$10
per 1M tokens
Blended
$3.44
3 in : 1 out, per 1M
Context window
400K
max tokens per request
Speed
Coming soon
our own tests
List price from the OpenRouter models API (openai/gpt-5), Nov 4, 2026. Providers can charge differently.