EleutherAI: model lineup and pricing overview
EleutherAI model lineup with prices, context windows and average benchmark scores. Open research collective behind Pythia and GPT-NeoX.
What the data shows
EleutherAI has 14 models in the index. The average input price is $0.83 and the average output price is $3.56 per million tokens.
The strongest model by average score is gpt-neox-instruct. The cheapest by input price is GPT-NeoX 1.5B.
How to read the lineup
- Start with the best model for quality-sensitive work.
- Use the cheapest model for high-volume tasks.
- Check open-weight availability if self-hosting matters.
- Keep a second provider for fallback.
EleutherAI models
| # | Model | Input / 1M | Output / 1M | Context | Avg score |
|---|---|---|---|---|---|
| 1 | GPT-NeoX Instruct | $1.52 | $5.60 | 16,384 | 62.6 |
| 2 | GPT-NeoX | $1.57 | $7.57 | 16,384 | 61.7 |
| 3 | Pythia Instruct | $1.41 | $5.70 | 8,192 | 60.8 |
| 4 | GPT-NeoX Chat | $1.49 | $7.20 | 16,384 | 60.1 |
| 5 | Pythia | $1.29 | $5.47 | 32,768 | 59.8 |
| 6 | GPT-NeoX Base | $1.22 | $4.64 | 16,384 | 59.7 |
| 7 | Pythia Chat | $1.31 | $5.35 | 4,096 | 59.1 |
| 8 | Pythia Base | $0.99 | $4.42 | 16,384 | 55.9 |
| 9 | GPT-NeoX 8B | $0.25 | $1.04 | 16,384 | 43.7 |
| 10 | GPT-NeoX 7B | $0.20 | $0.89 | 8,192 | 42.4 |
| 11 | Pythia 8B | $0.16 | $0.79 | 32,768 | 41.4 |
| 12 | Pythia 7B | $0.10 | $0.36 | 8,192 | 40.7 |
| 13 | GPT-NeoX 1.5B | $0.060 | $0.32 | 32,768 | 36.4 |
| 14 | Pythia 1.5B | $0.10 | $0.54 | 4,096 | 35.8 |
Methodology
This story uses the AI & LLM Index dataset: 600 models, 40 providers and 12 benchmarks. Prices are listed per million tokens. Scores are modelled estimates on a 0–100 scale and are not official benchmark results. Figures are rounded for readability.
Related
FAQ
What does the EleutherAI: model lineup and pricing overview data show?
EleutherAI model lineup with prices, context windows and average benchmark scores. Open research collective behind Pythia and GPT-NeoX.
Are the numbers official?
No. Prices and scores are compiled for this demo index. Benchmark values are modelled estimates, not official results. Verify figures with the provider or benchmark owner before making decisions.
How should I use this ranking?
Use it to form a shortlist. Check the specific model pages, compare price and context, and test the shortlist on your own examples before committing.