Leaderboard / OpenAI
GPT-6 Luna
OpenAI Medium CLOSED Proprietary
SIscope score
No score yet
25% coverage, needs 70%
Arena text rank
Not on board
Blind chat votes
Arena WebDev rank
Not on board
Blind web-app votes
Price, blended
$0.2/1M
$0.1 in · $0.5 out
Context window
1.1M
1,050,000 tokens
Access
Closed
API or app only
Coverage
1/6
Missing: Coding, Reasoning & knowledge, Math, Chat quality, Following instructions
Data as of
Nov 4, 2026
Latest price check
Verdict
GPT-6 Luna doesn't have enough test coverage for an overall SIscope score yet. Cheaper than 88% of priced models.
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
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 | Not on this board yet | ||||
| 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 | #34 of 57 | -1.9% | -2.5–-1.4% | 60,580 | Nov 2, 2026 |
Source: Arena (formerly LMArena) leaderboard dataset, CC BY 4.0. Fetched Nov 4, 2026.
Price
Input
$0.1
per 1M tokens
Output
$0.5
per 1M tokens
Blended
$0.2
3 in : 1 out, per 1M
Context window
1.1M
max tokens per request
Speed
Coming soon
our own tests
List price from the OpenRouter models API, Nov 4, 2026: openai/gpt-6-luna on OpenRouter ↗. Providers can charge differently.