Apertus vs Olmo by Ai2
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
Apertus
Switzerland's fully open LLM: weights, data and training recipes all p...
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Olmo by Ai2
Fully open LLMs: weights, data, code and checkpoints
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| RECATOOLS Score | 7 / 10 | 6.8 / 10 |
| Capability | — | |
| Value for money | — | |
| Ease of use | — | |
| ASEAN readiness | — | |
| API quality | — | |
| Pricing | Open Source | Open Source |
| Free tier | Apache 2.0 weights free on Hugging Face; free chat via Public AI; Swiss hosts such as Swisscom and Infomaniak charge per token | Free: Apache 2.0 weights and code, ODC-By training data, free Ai2 Playground chat; self-host at your own compute cost |
| Paid from | — | — |
| Has API | ✓ | ✗ |
| Open source | ✓ | ✓ |
| Free to use | ✓ | ✓ |
| Users | — | — |
| Founded | 2025 | 2024 |
| Maker | Swiss AI Initiative (EPFL, ETH Zurich and CSCS) | Allen Institute for AI (Ai2) |
| Verdict | Apertus is the model to pick when provenance matters more than leaderboard rank: weights, data and recipes are public, web opt-outs were honoured retroactively, and Apache 2.0 allows commercial use. Version 1.5 closed re... |
Olmo is the fully open option among open models: Ai2 publishes training data, post-training data, training code, intermediate checkpoints and evaluation tooling with the weights, which makes it the natural choice for res... |
| Full review → | Directory listing → |
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Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.