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Ai2

1 model built

Ai2 (Allen Institute for Artificial Intelligence) is a Seattle nonprofit founded in 2014 by Paul Allen. It's better known for research contributions than commercial API volume — the OLMo model family (fully open weights, training data, and code) and Semantic Scholar are its flagship efforts. On OpenKey, Ai2 currently ships one model: Olmo 3 32B Think, released November 21, 2025. Its strategy isn't chasing frontier benchmarks or a broad paid lineup — it's proving that a fully open, reproducible model can still be competitive, which matters if you care about transparency over raw leaderboard position.

Lineup

There's no lineup to navigate yet — Ai2 has exactly one model on OpenKey: Olmo 3 32B Think. It runs a 65,536-token context window at $0.15 per 1M input tokens and $0.50 per 1M output tokens (OpenKey price: $0.1545 in / $0.515 out, after the flat 3% fee). Use it if you want an open-weights model with a reasoning-oriented ('think') design at a low cost. If you need a broader menu — cheaper options, free tiers, or bigger context — you'll have to look at other labs on the platform.

  • Olmo 3 32B Think ctx 66K · in $0.154 · out $0.515

Prices per 1M tokens, flat 3% fee included.

Questions

What does Ai2 charge for API access?
Their only model, Olmo 3 32B Think, costs $0.15 per 1M input tokens and $0.50 per 1M output tokens at provider list price. On OpenKey that's $0.1545 input and $0.515 output after the flat 3% fee. There's no free tier for this model — Ai2 has zero free models on the platform.
Which Ai2 model should I use?
There's only one option: Olmo 3 32B Think, released November 21, 2025. It has a 65,536-token context window and text-to-text modality. Since it's the only Ai2 model on OpenKey, the choice is easy — the harder question is whether an open-weights, reasoning-focused model fits your use case better than a closed alternative.
Is Ai2 a typical API-first AI lab?
No. Ai2 is a Seattle nonprofit founded in 2014 by Paul Allen, focused on open research — the OLMo family and Semantic Scholar are its best-known projects. Olmo 3 32B Think is its one entry on OpenKey; the lab's priority is open weights and reproducibility, not building out a large commercial model lineup.