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Leaderboard / OpenAI

GPT-5.1

OpenAI Medium CLOSED Proprietary
50% coverage3 of 6 categoriesMissing: Agents & tools, Chat quality, Following instructions. Missing means no data yet, never a zero.
Compare with DeepSeek V4.1 Flash →Compare with any modelMonthly cost
Other settings:High · 64Default · 52
Verdict

GPT-5.1 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.

CodingAgentsno data yetReasoningMathChatno data yetInstructionsno data yet

Category scores

Percentiles: 90 means better than about 90% of tested models.

Coding32
Agents & toolsNo data yet–
Reasoning & knowledge69
Math66
Chat qualityNo data yet–
Following instructionsNo data yet–

What goes into each category · Compare with DeepSeek V4.1 Flash

WebDev arena over time

Rating (solid) and rank (dashed) at each Arena update we have: 7 of 16 snapshots.

139013951400Oct 16: 1395.9 (rank #96)Oct 18: 1395.8 (rank #97)Oct 19: 1396 (rank #100)Oct 22: 1395.8 (rank #101)Oct 23: 1395.7 (rank #102)Oct 27: 1395.8 (rank #103)Oct 28: 1395.6 (rank #104)Oct 16Oct 28#1#56#110Oct 16: rank #96Oct 18: rank #97Oct 19: rank #100Oct 22: rank #101Oct 23: rank #102Oct 27: rank #103Oct 28: rank #104Oct 16Oct 28

WebDev arena on Arena ↗

Independent test runs

Run by Epoch AI on the same harness for every model. Bars show the share of questions answered correctly.

PhD-level science multiple choice questions
Better than 69% of 333 tested models. Run Nov 17, 2025.
Competition maths problems in the style of AIME
Better than 66% of 313 tested models. Run Nov 17, 2025.

Human-vote arenas

People compare two anonymous answers and pick the better one. Scores work like chess ratings.

ArenaRankScoreRange (95%)VotesUpdated
Text arena ↗
Everyday chat, blind human votes
Not on this board yet
WebDev arena ↗
Building web apps, blind human votes
#104 of 15213961384–14074,891Oct 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, Nov 4, 2026: openai/gpt-5.1 on OpenRouter ↗. Providers can charge differently.