Mathematics · EleutherAI

GPT-NeoX on MATH-500: score, rank and what it means

GPT-NeoX scores 64.0 on MATH-500, placing it #425 of 600 models in the index. The benchmark average is 72.5 and the leader is GPT-5.2 Max at 96.7.

Score
64.0
0–100 scale
Rank
#425
of 600
Percentile
29th
within the index
Benchmark avg
72.5
all models
Leader
96.7
GPT-5.2 Max
Gap to leader
32.7
points

Score distribution

The chart shows the top 10 models on MATH-500, with GPT-NeoX highlighted. Longer bars mean higher scores.

GPT-5.2 Max 96.7
GPT-5.1 Reasoning 95.9
GPT-5.1 Pro 95.1
o4 Reasoning 94.8
Grok 4 Max 94.6
Grok 4 Reasoning 94.4
Claude Opus 4.5 Max 94.2
Claude Opus 4.5 93.7
Gemini 3 Pro Reasoning 93.3
Claude Opus 4.5 Turbo 93.2

Top 10 leaderboard

#ModelProviderContextInput / 1MAvg score
1 GPT-5.2 Max OpenAI 1000000 $21.39 89.2
2 GPT-5.1 Reasoning OpenAI 400000 $20.27 88.3
3 GPT-5.1 Pro OpenAI 200000 $19.77 87.8
4 o4 Reasoning OpenAI 1000000 $19.69 87.5
5 Grok 4 Max xAI 2000000 $19.70 86.6
6 Grok 4 Reasoning xAI 2000000 $19.67 87.8
7 Claude Opus 4.5 Max Anthropic 1000000 $20.90 87.8
8 Claude Opus 4.5 Anthropic 400000 $19.42 87.7
9 Gemini 3 Pro Reasoning Google DeepMind 200000 $19.69 87.5
10 Claude Opus 4.5 Turbo Anthropic 2000000 $19.57 85.7

What this score means

On MATH-500, GPT-NeoX sits at #425 of 600. The leader, GPT-5.2 Max, scores 96.7, so the gap to the top is 32.7 points. The median model in this index scores 76.0, which puts GPT-NeoX below the midpoint.

EleutherAI models average 52.0 on this benchmark. GPT-NeoX is 12.0 points above that provider line, so it is a stronger result than the average EleutherAI model.

Among open-weight models, the average is 70.8. GPT-NeoX is 6.8 points below that group. This is the more useful comparison if you are shortlisting within the same tier rather than across the whole index.

Read a 64.0 as a relative signal, not an absolute guarantee. Benchmark scores depend on prompt format, evaluation harness and contamination controls. Use this page to narrow the shortlist, then test the model on your own data.

Price context

At $1.57 per million input tokens, GPT-NeoX is below the median input price of $4.00 across the 600 models scored on MATH-500. The models immediately around it in the ranking are shown below so you can compare score and price together.

ModelProviderContextInput / 1MAvg score
Kimi K2 7B Moonshot AI 16384 $1.72 62.7
GLM-4.5 8B Zhipu AI 32768 $1.46 61.3
Llama 4 Maverick 8B Meta AI 4096 $1.64 63.4
DeepSeek-R1 7B DeepSeek 32768 $1.79 63.0
GPT-NeoX EleutherAI 16384 $1.57 61.7
StableLM 2 Base Stability AI 8192 $1.49 61.9
Embed 4 Pro Cohere 4096 $5.05 63.5

Other benchmarks for GPT-NeoX

BenchmarkScoreRankPercentileRelative
MMLU-Pro 67.6 422 30th
GPQA Diamond 54.6 468 22th
SWE-bench Verified 46.4 449 25th
HumanEval 64.9 442 26th
AIME 2025 55.8 411 32th
LiveCodeBench 52.7 418 30th
IFEval 69.8 464 23th
TruthfulQA 67.6 422 30th
HellaSwag 75.0 442 26th
MMMU 60.5 424 29th
Arena Elo 1277.8 448 25th

FAQ

What score does GPT-NeoX get on MATH-500?

GPT-NeoX scores 64.0 on MATH-500 in this index. The benchmark average is 72.5 and the top score is 96.7.

How does GPT-NeoX rank on MATH-500?

It ranks #425 of 600 models, in the 29th percentile. The leader is GPT-5.2 Max at 96.7.

Is GPT-NeoX good at MATH-500?

It is below the median for this benchmark, so test it carefully before relying on it for this capability. The result should be read alongside its price and context window.

How is the MATH-500 score calculated?

MATH-500 is a mathematics benchmark. Scores in this index are modelled estimates on a 0–100 scale (or Elo for Arena), derived from capability tier and benchmark difficulty. They are not official leaderboard results.

What does GPT-NeoX cost?

GPT-NeoX costs $1.57 per million input tokens and $7.57 per million output tokens.

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