Updated daily at 05:00 UTC
Company
Allen Institute for AI (Ai2)
Non-profit AI research institute founded by Paul Allen that releases fully open models (Olmo, Molmo, Tulu, olmOCR) with data and code.
- Country
- United States
- Founded
- 2014
- Headquarters
- Seattle, Washington
- Type
- Nonprofit
- Open weights
- Open
- Website
- https://allenai.org
Molmo
Vision-language
- Molmo2 4B14 Dec 2025CurrentOpen weights
- Molmo2 8B14 Dec 2025CurrentOpen weights
- Molmo2-O 7B14 Dec 2025CurrentOpen weights
- Molmo 72B25 Sep 2024LegacyOpen weights
- Molmo 7B-D25 Sep 2024LegacyOpen weights
- Molmo 7B-O25 Sep 2024LegacyOpen weights
- MolmoE 1B25 Sep 2024LegacyOpen weights
OLMoASR
Speech-to-text
- OLMoASRAug 2025CurrentOpen weights
OLMoE
Language
- OLMoE 1B-7B (0125) Instruct27 Jan 2025CurrentOpen weights
- OLMoE 1B-7B (0924) InstructSep 2024LegacyOpen weights
Olmo
Language
- Olmo Hybrid 7B28 Jan 2026CurrentOpen weights
- Olmo 3.1 32B InstructDec 2025CurrentOpen weights
- Olmo 3.1 32B ThinkDec 2025CurrentOpen weights
- Olmo 3 32B ThinkNov 2025LegacyOpen weights
- Olmo 3 7B InstructNov 2025CurrentOpen weights
- Olmo 3 7B ThinkNov 2025CurrentOpen weights
- FlexOlmo 7x7B11 Jun 2025CurrentOpen weights
- OLMo 2 1B Instruct29 Apr 2025LegacyOpen weights
- OLMo 2 32B InstructMar 2025LegacyOpen weights
- OLMo 2 13B InstructNov 2024LegacyOpen weights
- OLMo 2 7B InstructNov 2024LegacyOpen weights
- OLMo 7B July 2024 (0724)Jul 2024LegacyOpen weights
- OLMo 1.7 7B (0424)17 Apr 2024LegacyOpen weights
- OLMo 1BFeb 2024LegacyOpen weights
- OLMo 7B InstructFeb 2024LegacyOpen weights
SERA
Code
- SERA 32B27 Jan 2026CurrentOpen weights
Tulu
Language
- Llama 3.1 Tulu 3.1 8B7 Feb 2025CurrentOpen weights
- Llama 3.1 Tulu 3 405BJan 2025CurrentOpen weights
- Llama 3.1 Tulu 3 70BNov 2024CurrentOpen weights
- Llama 3.1 Tulu 3 8BNov 2024LegacyOpen weights
- Tulu 2 (7B, 13B, 70B)Nov 2023LegacyOpen weights
olmOCR
OCR document
- olmOCR 2 7BOct 2025CurrentOpen weights
- olmOCR 7B (0725, 0825)22 Jul 2025LegacyOpen weights
- olmOCR 7B (0225 preview)Feb 2025LegacyOpen weights