Microsoft Releases Fara1.5 Browser Agent Family Outperforming OpenAI Operator

Microsoft Research released Fara1.5 on May 22, 2026, a family of browser computer-use agents available in 4B, 9B, and 27B parameter sizes. The 27B model scores 72% on the Online-Mind2Web benchmark, outperforming both OpenAI Operator and Gemini 2.5 Computer Use. The release includes FaraGen1.5, a synthetic data pipeline that trains agents on gated data.

Fara1.5 agent family release

• ▪Fara1.5 is a family of browser computer-use agents available in 4B, 9B, and 27B sizes.
• ▪Microsoft Research released Fara1.5 on May 22, 2026.

Performance benchmarks

• ▪Fara1.5-27B outperforms OpenAI Operator on Online-Mind2Web.
• ▪Fara1.5-27B outperforms Yutori Navigator n1 on Online-Mind2Web.
• ▪Fara1.5-27B scores 72% on Online-Mind2Web.
• ▪Fara1.5-27B outperforms Gemini 2.5 Computer Use on Online-Mind2Web.

FaraGen1.5 synthetic data pipeline

• ▪Microsoft Research released FaraGen1.5 as part of the Fara1.5 release.
• ▪FaraGen1.5 is a synthetic data pipeline that trains agents on gated data.

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