Molmo Base on GPQA Diamond: score, rank and what it means
Molmo Base scores 59.9 on GPQA Diamond, placing it #406 of 600 models in the index. The benchmark average is 65.6 and the leader is GPT-5.2 Reasoning at 87.0.
Score distribution
The chart shows the top 10 models on GPQA Diamond, with Molmo Base highlighted. Longer bars mean higher scores.
Top 10 leaderboard
| # | Model | Provider | Context | Input / 1M | Avg score |
|---|---|---|---|---|---|
| 1 | GPT-5.2 Reasoning | OpenAI | 1000000 | $20.98 | 87.5 |
| 2 | GPT-5.1 Max | OpenAI | 2000000 | $20.50 | 87.9 |
| 3 | Claude Opus 4.5 Pro | Anthropic | 200000 | $20.98 | 89.1 |
| 4 | GPT-5.1 Reasoning | OpenAI | 400000 | $20.27 | 88.3 |
| 5 | Claude Sonnet 4.5 Reasoning | Anthropic | 400000 | $19.48 | 87.7 |
| 6 | GPT-5.2 | OpenAI | 2000000 | $19.71 | 88.0 |
| 7 | o4 Turbo | OpenAI | 2000000 | $19.34 | 86.6 |
| 8 | Claude Opus 4.5 Max | Anthropic | 1000000 | $20.90 | 87.8 |
| 9 | Grok 4 Turbo | xAI | 1000000 | $19.21 | 86.7 |
| 10 | Claude Sonnet 4.5 Max | Anthropic | 1000000 | $19.90 | 87.2 |
What this score means
On GPQA Diamond, Molmo Base sits at #406 of 600. The leader, GPT-5.2 Reasoning, scores 87.0, so the gap to the top is 27.1 points. The median model in this index scores 68.8, which puts Molmo Base below the midpoint.
Allen Institute for AI models average 55.6 on this benchmark. Molmo Base is 4.3 points above that provider line, so it is a stronger result than the average Allen Institute for AI model.
Among open-weight models, the average is 63.6. Molmo Base is 3.7 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 59.9 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 $2.02 per million input tokens, Molmo Base is below the median input price of $4.00 across the 600 models scored on GPQA Diamond. 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 |
|---|---|---|---|---|
| Phi-3.5 Base | Microsoft | 65536 | $2.24 | 66.6 |
| DeepSeek-V3.2 7B | DeepSeek | 4096 | $1.75 | 63.2 |
| Reka Flash Mini | Reka AI | 16384 | $5.77 | 65.5 |
| ERNIE 4.5 Nano | Baidu | 32768 | $6.01 | 65.6 |
| Molmo Base | Allen Institute for AI | 4096 | $2.02 | 65.0 |
| Reka Core Nano | Reka AI | 16384 | $5.45 | 65.1 |
| Nemotron Nano Chat | NVIDIA | 32768 | $2.21 | 66.2 |
Other benchmarks for Molmo Base
| Benchmark | Score | Rank | Percentile | Relative |
|---|---|---|---|---|
| MMLU-Pro | 68.5 | 411 | 32th | |
| SWE-bench Verified | 50.2 | 420 | 30th | |
| HumanEval | 69.9 | 396 | 34th | |
| MATH-500 | 69.1 | 386 | 36th | |
| AIME 2025 | 58.2 | 398 | 34th | |
| LiveCodeBench | 51.9 | 430 | 28th | |
| IFEval | 75.5 | 393 | 35th | |
| TruthfulQA | 71.4 | 391 | 35th | |
| HellaSwag | 77.6 | 406 | 32th | |
| MMMU | 62.4 | 405 | 33th | |
| Arena Elo | 1318.8 | 396 | 34th |
FAQ
What score does Molmo Base get on GPQA Diamond?
Molmo Base scores 59.9 on GPQA Diamond in this index. The benchmark average is 65.6 and the top score is 87.0.
How does Molmo Base rank on GPQA Diamond?
It ranks #406 of 600 models, in the 32nd percentile. The leader is GPT-5.2 Reasoning at 87.0.
Is Molmo Base good at GPQA Diamond?
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 GPQA Diamond score calculated?
GPQA Diamond is a reasoning 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 Base cost?
Molmo Base costs $2.02 per million input tokens and $7.53 per million output tokens.