Preference · Stability AI

StableLM 2 8B on Arena Elo: score, rank and what it means

StableLM 2 8B scores 1183.9 on Arena Elo, placing it #571 of 600 models in the index. The benchmark average is 1349.9 and the leader is Claude Opus 4.5 Max at 1501.9.

Score
1183.9
0–100 scale
Rank
#571
of 600
Percentile
5th
within the index
Benchmark avg
1349.9
all models
Leader
1501.9
Claude Opus 4.5 Max
Gap to leader
318.0
points

Score distribution

The chart shows the top 10 models on Arena Elo, with StableLM 2 8B highlighted. Longer bars mean higher scores.

Claude Opus 4.5 Max 1501.9
GPT-5.2 Reasoning 1500.4
GPT-5.2 Turbo 1500.3
Claude Opus 4.5 Reasoning 1497.5
GPT-5.2 Max 1495.3
Gemini 3 Pro Turbo 1494.9
Grok 4 Max 1491.4
Claude Opus 4.5 1491.2
GPT-5.1 Pro 1490.0
Grok 4 Reasoning 1487.6

Top 10 leaderboard

#ModelProviderContextInput / 1MAvg score
1 Claude Opus 4.5 Max Anthropic 1000000 $20.90 87.8
2 GPT-5.2 Reasoning OpenAI 1000000 $20.98 87.5
3 GPT-5.2 Turbo OpenAI 1000000 $20.73 87.4
4 Claude Opus 4.5 Reasoning Anthropic 2000000 $20.91 88.2
5 GPT-5.2 Max OpenAI 1000000 $21.39 89.2
6 Gemini 3 Pro Turbo Google DeepMind 400000 $19.62 86.4
7 Grok 4 Max xAI 2000000 $19.70 86.6
8 Claude Opus 4.5 Anthropic 400000 $19.42 87.7
9 GPT-5.1 Pro OpenAI 200000 $19.77 87.8
10 Grok 4 Reasoning xAI 2000000 $19.67 87.8

What this score means

On Arena Elo, StableLM 2 8B sits at #571 of 600. The leader, Claude Opus 4.5 Max, scores 1501.9, so the gap to the top is 318.0 points. The median model in this index scores 1373.8, which puts StableLM 2 8B below the midpoint.

Stability AI models average 1232.1 on this benchmark. StableLM 2 8B is 48.2 points below that provider line, so it is a weaker result than the average Stability AI model.

Among small open-weight models, the average is 1224.7. StableLM 2 8B is 40.8 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 1183.9 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 $0.38 per million input tokens, StableLM 2 8B is below the median input price of $4.00 across the 600 models scored on Arena Elo. The models immediately around it in the ranking are shown below so you can compare score and price together.

ModelProviderContextInput / 1MAvg score
Llama 3.1 1.5B Meta AI 4096 $0.53 50.7
Molmo 8B Allen Institute for AI 32768 $0.44 49.9
Llama 3 Modal 1.5B Modal 4096 $0.42 49.7
Llama 3.1 Turbo 1.5B Together AI 16384 $0.46 49.8
StableLM 2 8B Stability AI 32768 $0.38 47.0
Molmo 7B Allen Institute for AI 32768 $0.42 49.3
Llama 3 Baseten 1.5B Baseten 4096 $0.42 48.2

Other benchmarks for StableLM 2 8B

BenchmarkScoreRankPercentileRelative
MMLU-Pro 54.8 574 4th
GPQA Diamond 40.7 584 3th
SWE-bench Verified 31.0 577 4th
HumanEval 50.4 573 5th
MATH-500 44.5 578 4th
AIME 2025 35.7 562 6th
LiveCodeBench 29.5 583 3th
IFEval 60.8 567 6th
TruthfulQA 55.3 573 5th
HellaSwag 66.7 569 5th
MMMU 47.8 566 6th

FAQ

What score does StableLM 2 8B get on Arena Elo?

StableLM 2 8B scores 1183.9 on Arena Elo in this index. The benchmark average is 1349.9 and the top score is 1501.9.

How does StableLM 2 8B rank on Arena Elo?

It ranks #571 of 600 models, in the 5th percentile. The leader is Claude Opus 4.5 Max at 1501.9.

Is StableLM 2 8B good at Arena Elo?

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 Arena Elo score calculated?

Arena Elo is a preference 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 8B cost?

StableLM 2 8B costs $0.38 per million input tokens and $1.78 per million output tokens.

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