Answer the same prompt as a rival model; real users vote blind on which answer they prefer.
1,511
48% expected win rate against the board leader (1,526)
#3 of 113
max · board 2026-11-09
Source: ArenaMetaUnited States· released Oct 2026
Ranked #15, tested so far in 4 of the 5 categories the Index averages.
Meta, United States. One of 7 models from this lab on the Index.
Snapshot November 10, 2026
OpenCharts Index
71.5
Ranked #15 (14 to 18) of 80 · 28.5% behind the frontier on average · 17 comparable tests · 4 counting categories
Part of this Index is an estimate. On the 4 categories it is tested in, it averages 70.3. The rest is filled in from models tested in every category, because it has too few results to count there yet: Reasoning. Such estimates have been within 2.6 points about nine times in ten.
Its band runs from 68.2 to 74.1: where the Index could land once it is tested in every category, or if any single test were dropped. That covers #14 to #18, and neighbours inside that range are ties.
Needs more results (2 of 5 so far)
Averaging 78.5 on the 2 it has; the score opens at 4 of 5.
Distance to today's frontier on the hardest tests. Not a measure of intelligence.
What it's known for
Strongest in math (85.1) and coding (69.6). It trails the frontier most in multimodal, 39.2% behind on average. No comparable result yet in knowledge. Between 25% and 30% behind the best published results, on average. Part of its Index is an estimate. It has too few results in reasoning for that category to count, so it is filled in from models tested in every category. On the categories that do count it averages 70.3. Across its band it could sit anywhere from #14 to #18.
Strongest category
Math
Competition and research mathematics, graded on the final answer or the proof.
85.1
Mean of 4 of the category's 4 comparable tests. Counts toward the Index.
Best single result
Solve competition mathematics problems that have a single exact integer answer.
99.4%
99.4% of the best (100.0%) · #15 of 98.
Olympiad-style problems need long, careful chains of reasoning, and there is no partial credit.
Where it trails
Play a little-known card-based adventure game ten times through a text interface, keeping notes, and score on the last two games.
31.4%
65.3% behind the best published result (90.5%) · #14 of 30.
Getting better at an unfamiliar job by doing it is what people do in their first weeks at work. This checks whether practice helps a model at all.
Not measured yet
No comparable result yet in this category. A blank is a blank, never a zero, and it does not lower the Index.
Covered, but not averaged into the Index:
See it at work
Every test it has taken, by category, with the kind of task it faced, who produced the number and where the result landed against the best published one. The examples are original and illustrative, never items from the datasets themselves.
Human preference · mean 95.7 across 1 comparable test · a single-test category, shown beside the Index and never averaged into it
Answer the same prompt as a rival model; real users vote blind on which answer they prefer.
1,511
48% expected win rate against the board leader (1,526)
#3 of 113
max · board 2026-11-09
Source: ArenaEvery result is read against the best published one on its test: percent scores as a share of the best above chance, Arena ratings as the expected win rate against the board leader, open-ended values on a log scale. Sitting a harder exam never lowers a model. Every number links to the publisher that produced it.
Head to head
Choose a rival. Every counted test both have taken appears side by side as a share of the best published result on that test, with the category means above. A win is a higher share; a gap under 2 points is a tie, because one item on a 45-problem exam is 2.2 points and publishers' own standard errors are of that order.
Muse Wonder
#15·Index 71.5B-
2 : 12
wins · 2 ties · 16 shared
GPT-6 Astra
#1·Index 93.7A
GPT-6 Astra comes out ahead on 12 of the 16 tests both have taken.
Category means
Reasoning
Knowledge
Coding
Math
Agentic
Multimodal
Human preference
Shared tests · biggest gaps first
Bars are distances to the best published result on each test (percent scores above chance, Arena ratings as win rate against the leader, open-ended values on a log scale). Raw values as the publishers report them.
Open GPT-6 AstraScores
The best published run per benchmark, the raw value as the publisher reports it, who produced the number, how close it comes to the best published result on that test, and where the model sits among every model scored on it. Percent scores are read above chance, Arena ratings as a win rate against the board leader, open-ended values on a log scale. A test with too few models to compare against is shown but not counted, and so is an archived test: one whose publisher no longer covers new models.
Category means
Mean · tests taken of the category's comparable tests. A faded category either rests on fewer than half of them or is a single-test category (marked “beside”), which is shown next to the Index and never averaged into it.
28.3%
78.6% of the best (36.0%)
87th percentile of 102
max
Source: Epoch AI — AI Benchmarking Hub51.0%
51.7% of the best (90.0%), above chance
82th percentile of 72 · n = 100
max
Source: Epoch AI — AI Benchmarking Hub60.3%
90.1% of the best (66.9%)
92th percentile of 96 · n = 338
max
Source: Epoch AI — AI Benchmarking Hub24.9%
46.1% of the best (54.0%)
58th percentile of 25 · n = 11
xhigh · agent: codex_cli · reasoning effort: xhigh
Source: Epoch AI — AI Benchmarking Hub50.4%
87.2% of the best (57.8%)
76th percentile of 18
max · reasoning level: Max
Source: Epoch AI — AI Benchmarking Hub1,650
28% expected win rate against the board leader (1,818)
86th percentile of 110
max · board 2026-11-09
Source: Arena (LMArena) — Leaderboard Dataset99.4%
99.4% of the best (100.0%)
84th percentile of 98 · n = 45
max
Source: Epoch AI — AI Benchmarking Hub82.1%
86.3% of the best (95.1%)
78th percentile of 78 · n = 290
max
Source: Epoch AI — AI Benchmarking Hub70.7%
70.7% of the best (100.0%)
76th percentile of 68 · n = 48
max
Source: Epoch AI — AI Benchmarking Hub84.0%
84.0% of the best (100.0%)
85th percentile of 81
66.1%
78.5% of the best (84.2%)
86th percentile of 58
max
Source: Epoch AI — AI Benchmarking Hub$9,432
84.0% of the best ($16,484) on a log scale
84th percentile of 65
31.4%
34.7% of the best (90.5%)
55th percentile of 30 · n = 21
max
Source: Epoch AI — AI Benchmarking Hub54.2%
40.3% of the best (90.0%), above chance
64th percentile of 37 · n = 60
max
Source: Epoch AI — AI Benchmarking Hub31.7%
54.1% of the best (58.6%)
51th percentile of 36 · n = 50
30.8%
88.0% of the best (35.0%)
92th percentile of 37 · n = 100
max
Source: Epoch AI — AI Benchmarking Hub1,511
48% expected win rate against the board leader (1,526)
98th percentile of 113
max · board 2026-11-09
Source: Arena (LMArena) — Leaderboard DatasetNearby on the leaderboard

29 of the models on this page run inside Theo today. Theo picks the right one for each step and always shows which engine answered.