Model Tracker
Fara1.5-4B
Fara1.5-4B is an AI model made by Microsoft. Microsoft released it on 21 May 2026. It takes text, image and returns text.
Fara1.5-4B is an AI model made by Microsoft. Microsoft released it on 21 May 2026. It takes text, image and returns text. Its context window is 262,144 tokens. Its weights are open. Its licence is MIT.
- Released
- 21 May 2026 — huggingface.co, read 16 October 2026
- Status
- Not confirmed: Official maker pages conflict: the Foundry catalog says “Generally available (GA),” while Microsoft’s repository and research page describe Fara1.5 as a “research preview.” The register’s status cannot be resolved unambiguously from these statements.
- Takes
- Text, Image — huggingface.co, read 16 October 2026
- Returns
- Text — huggingface.co, read 16 October 2026
- Open weights
- Yes — github.com, read 16 October 2026
- Licence
- MIT — huggingface.co, read 16 October 2026
- Context window
- 262,144 tokens — huggingface.co, read 16 October 2026
- Longest answer
- Not confirmed: The maker pages reviewed do not print the model’s standard maximum output-token limit. Example generation settings are not stated as the model’s limit.
- Knowledge cutoff
- Not confirmed: The model card says the cutoff is limited to “early 2026,” but does not give a date at the required YYYY, YYYY-MM, or YYYY-MM-DD precision.
- API price, input
- Not confirmed: The maker’s reviewed model and pricing pages do not publish a standard input price per 1,000,000 tokens for this model.
- API price, output
- Not confirmed: The maker’s reviewed model and pricing pages do not publish a standard output price per 1,000,000 tokens for this model.
- Where
- Not confirmed: its line was not found on its page, and a second reading did not confirm it
- Parameters
- 4,000,000,000 — huggingface.co, read 16 October 2026
- Model card
- https://huggingface.co/microsoft/Fara1.5-4B — huggingface.co, read 16 October 2026
Questions
When was Fara1.5-4B released?
Microsoft released Fara1.5-4B on 21 May 2026.
What is the context window of Fara1.5-4B?
The context window of Fara1.5-4B is 262,144 tokens, as Microsoft prints it.
Are the weights of Fara1.5-4B open?
Yes: Microsoft publishes the weights of Fara1.5-4B for download.
What is the licence of Fara1.5-4B?
The licence of Fara1.5-4B is MIT, as Microsoft names it.
What does Fara1.5-4B take and return?
Fara1.5-4B takes text, image and returns text.
How many parameters does Fara1.5-4B have?
Fara1.5-4B has 4,000,000,000 parameters, as Microsoft publishes it.
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- MAI-Image-2-Efficient
- MAI-Image-2.5
- MAI-Image-2.5-Flash
- MAI-Image-2.5-Pro
- MAI-Image-2.6
- MAI-Image-2.6-Flash
- MAI-Thinking-1
- MAI-Transcribe-1
- MAI-Transcribe-2
- MAI-Voice-1
- Orca 2
- Phi Silica
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- Phi-3-small-128k-instruct
- Phi-3-small-8k-instruct
- Phi-4-reasoning-plus
- Phi-4-reasoning-vision-15B
Sources
- Fara1.5 – A family of frontier computer use agent models (read 16 October 2026)
- Fara1.5-4B | Model Catalog | Microsoft Foundry (read 16 October 2026)
- microsoft/Fara1.5-4B (read 16 October 2026)
- Fara1.5 - A family of frontier computer use agent models (read 16 October 2026)