GPT-NeoX on GPQA Diamond: score, rank and what it means
GPT-NeoX scores 54.6 on GPQA Diamond, placing it #468 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 GPT-NeoX 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, GPT-NeoX sits at #468 of 600. The leader, GPT-5.2 Reasoning, scores 87.0, so the gap to the top is 32.4 points. The median model in this index scores 68.8, which puts GPT-NeoX below the midpoint.
EleutherAI models average 47.3 on this benchmark. GPT-NeoX is 7.3 points above that provider line, so it is a stronger result than the average EleutherAI model.
Among open-weight models, the average is 63.6. GPT-NeoX is 9.0 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 54.6 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 $1.57 per million input tokens, GPT-NeoX 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 |
|---|---|---|---|---|
| SmolLM3 Base | Hugging Face | 16384 | $1.38 | 60.4 |
| Llama 3 Baseten 8B | Baseten | 4096 | $1.02 | 57.0 |
| Hunyuan-Large 8B | Tencent | 4096 | $1.29 | 58.7 |
| Llama 3 Replicate 8B | Replicate | 32768 | $1.00 | 57.0 |
| GPT-NeoX | EleutherAI | 16384 | $1.57 | 61.7 |
| Llama 3 Modal 8B | Modal | 32768 | $0.98 | 56.6 |
| Llama 3.1 Cerebras 8B | Cerebras | 32768 | $1.02 | 58.2 |
Other benchmarks for GPT-NeoX
| Benchmark | Score | Rank | Percentile | Relative |
|---|---|---|---|---|
| MMLU-Pro | 67.6 | 422 | 30th | |
| SWE-bench Verified | 46.4 | 449 | 25th | |
| HumanEval | 64.9 | 442 | 26th | |
| MATH-500 | 64.0 | 425 | 29th | |
| 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 GPQA Diamond?
GPT-NeoX scores 54.6 on GPQA Diamond in this index. The benchmark average is 65.6 and the top score is 87.0.
How does GPT-NeoX rank on GPQA Diamond?
It ranks #468 of 600 models, in the 22nd percentile. The leader is GPT-5.2 Reasoning at 87.0.
Is GPT-NeoX 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 GPT-NeoX cost?
GPT-NeoX costs $1.57 per million input tokens and $7.57 per million output tokens.