Gemini 3.8 Flash rolling out three weeks after last release

Key Points:

• Google has released Gemini 3.8 Flash, the third update in three months, offering significant improvements over the previous 3.7 Flash model in software engineering, agentic tasks, and multi-step reasoning across specialized domains.
• Gemini 3.8 Flash outperforms many larger frontier models on benchmarks like DeepSWE v1.1 for software engineering, Vals Finance Agent V2, and Harvey’s Legal Agent Benchmark, while operating at a fraction of the cost.
• The model achieves a 54.9% score on HLE-Verified, demonstrating strong multi-step reasoning capabilities across STEM, humanities, and professional fields, attributed to its design that emphasizes greater diligence and iterative tool use.
• Gemini 3.8 Flash has a knowledge cutoff date of March 2026 for some domains, with limited knowledge in others up to January 2025, and is available at an introductory price until December 31 for Google AI Pro and Ultra subscribers and developers.
• Google also introduced Gemini 3.8 Flash Cyber for trusted testers via the Fairwind Program, which offers frontier-level performance in autonomous vulnerability discovery, replacing the previous 3.5 Cyber model.