Mathematics · Stability AI

StableLM 2 Chat on AIME 2025: score, rank and what it means

StableLM 2 Chat scores 52.6 on AIME 2025, placing it #439 of 600 models in the index. The benchmark average is 63.6 and the leader is Claude Opus 4.5 Pro at 91.4.

Score
52.6
0–100 scale
Rank
#439
of 600
Percentile
27th
within the index
Benchmark avg
63.6
all models
Leader
91.4
Claude Opus 4.5 Pro
Gap to leader
38.8
points

Score distribution

The chart shows the top 10 models on AIME 2025, with StableLM 2 Chat highlighted. Longer bars mean higher scores.

Claude Opus 4.5 Pro 91.4
GPT-5.2 Pro 91.0
GPT-5.1 Pro 90.6
GPT-5.2 90.6
o4 Reasoning 90.3
o4 Pro 89.9
Claude Opus 4.5 89.8
Gemini 3 Pro Max 89.6
Claude Opus 4.5 Max 89.3
Claude Opus 4.5 Reasoning 88.9

Top 10 leaderboard

#ModelProviderContextInput / 1MAvg score
1 Claude Opus 4.5 Pro Anthropic 200000 $20.98 89.1
2 GPT-5.2 Pro OpenAI 2000000 $21.32 89.6
3 GPT-5.1 Pro OpenAI 200000 $19.77 87.8
4 GPT-5.2 OpenAI 2000000 $19.71 88.0
5 o4 Reasoning OpenAI 1000000 $19.69 87.5
6 o4 Pro OpenAI 1000000 $19.37 87.3
7 Claude Opus 4.5 Anthropic 400000 $19.42 87.7
8 Gemini 3 Pro Max Google DeepMind 2000000 $20.57 87.9
9 Claude Opus 4.5 Max Anthropic 1000000 $20.90 87.8
10 Claude Opus 4.5 Reasoning Anthropic 2000000 $20.91 88.2

What this score means

On AIME 2025, StableLM 2 Chat sits at #439 of 600. The leader, Claude Opus 4.5 Pro, scores 91.4, so the gap to the top is 38.8 points. The median model in this index scores 67.6, which puts StableLM 2 Chat below the midpoint.

Stability AI models average 43.9 on this benchmark. StableLM 2 Chat is 8.7 points above that provider line, so it is a stronger result than the average Stability AI model.

Among open-weight models, the average is 61.8. StableLM 2 Chat is 9.1 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 52.6 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 $1.79 per million input tokens, StableLM 2 Chat is below the median input price of $4.00 across the 600 models scored on AIME 2025. The models immediately around it in the ranking are shown below so you can compare score and price together.

ModelProviderContextInput / 1MAvg score
SmolLM3 Chat Hugging Face 16384 $1.61 62.1
SmolLM3 Hugging Face 8192 $1.71 63.1
Qwen3-Coder 7B Alibaba Cloud 32768 $1.24 59.6
Qwen3 8B Alibaba Cloud 8192 $1.66 61.9
StableLM 2 Chat Stability AI 8192 $1.79 64.6
Firefunction Mini Fireworks AI 32768 $4.63 63.2
Reka Flash Nano Reka AI 16384 $3.93 61.0

Other benchmarks for StableLM 2 Chat

BenchmarkScoreRankPercentileRelative
MMLU-Pro 66.4 436 27th
GPQA Diamond 61.8 392 35th
SWE-bench Verified 51.6 410 32th
HumanEval 69.7 400 33th
MATH-500 68.0 401 33th
LiveCodeBench 55.7 399 34th
IFEval 74.9 400 33th
TruthfulQA 70.1 399 34th
HellaSwag 78.7 396 34th
MMMU 61.0 421 30th
Arena Elo 1297.5 425 29th

FAQ

What score does StableLM 2 Chat get on AIME 2025?

StableLM 2 Chat scores 52.6 on AIME 2025 in this index. The benchmark average is 63.6 and the top score is 91.4.

How does StableLM 2 Chat rank on AIME 2025?

It ranks #439 of 600 models, in the 27th percentile. The leader is Claude Opus 4.5 Pro at 91.4.

Is StableLM 2 Chat good at AIME 2025?

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 AIME 2025 score calculated?

AIME 2025 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 StableLM 2 Chat cost?

StableLM 2 Chat costs $1.79 per million input tokens and $9.72 per million output tokens.

Related