Molmo 7B on Arena Elo: score, rank and what it means
Molmo 7B scores 1183.4 on Arena Elo, placing it #572 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 distribution
The chart shows the top 10 models on Arena Elo, with Molmo 7B highlighted. Longer bars mean higher scores.
Top 10 leaderboard
| # | Model | Provider | Context | Input / 1M | Avg 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, Molmo 7B sits at #572 of 600. The leader, Claude Opus 4.5 Max, scores 1501.9, so the gap to the top is 318.5 points. The median model in this index scores 1373.8, which puts Molmo 7B below the midpoint.
Allen Institute for AI models average 1273.7 on this benchmark. Molmo 7B is 90.3 points below that provider line, so it is a weaker result than the average Allen Institute for AI model.
Among small open-weight models, the average is 1224.7. Molmo 7B is 41.3 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 1183.4 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 $0.42 per million input tokens, Molmo 7B 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.
| Model | Provider | Context | Input / 1M | Avg score |
|---|---|---|---|---|
| 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 |
| Phi-4 1.5B | Microsoft | 8192 | $0.42 | 48.1 |
Other benchmarks for Molmo 7B
| Benchmark | Score | Rank | Percentile | Relative |
|---|---|---|---|---|
| MMLU-Pro | 57.4 | 557 | 7th | |
| GPQA Diamond | 43.4 | 575 | 4th | |
| SWE-bench Verified | 32.3 | 574 | 4th | |
| HumanEval | 51.2 | 564 | 6th | |
| MATH-500 | 50.0 | 557 | 7th | |
| AIME 2025 | 37.1 | 555 | 8th | |
| LiveCodeBench | 37.9 | 550 | 8th | |
| IFEval | 61.3 | 562 | 6th | |
| TruthfulQA | 56.1 | 565 | 6th | |
| HellaSwag | 65.3 | 580 | 3th | |
| MMMU | 50.2 | 552 | 8th |
FAQ
What score does Molmo 7B get on Arena Elo?
Molmo 7B scores 1183.4 on Arena Elo in this index. The benchmark average is 1349.9 and the top score is 1501.9.
How does Molmo 7B rank on Arena Elo?
It ranks #572 of 600 models, in the 5th percentile. The leader is Claude Opus 4.5 Max at 1501.9.
Is Molmo 7B 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 Molmo 7B cost?
Molmo 7B costs $0.42 per million input tokens and $2.22 per million output tokens.