Verdict
GPT-5 doesn't have enough test coverage for an overall SIscope score yet. Strongest at reasoning & knowledge, weaker at coding. Mid-range on price.
SIscope score
No score yet
60% coverage, needs 70%
Human-vote rank
Not on board
Text arena
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
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.
GPQA Diamond85%
PhD-level science multiple choice questions
Better than 70% of 333 tested models. Run Aug 7, 2025.
OTIS Mock AIME 2024-2587%
Competition maths problems in the style of AIME
Better than 70% of 313 tested models. Run Aug 7, 2025.
SWE-bench Verified71%
Fixing real GitHub issues in Python repositories
Better than 32% of 35 tested models. Run Feb 5, 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 | Not on this board yet | ||||
| WebDev arena Building web apps, blind human votes | #92 of 152 | 1417 | 1402–1433 | 3,089 | 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
$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.