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Gemini 3.8 Flash

Google · 2026-09-02

Gemini 3.8 Flash is Google's September 2026 multimodal model for long-horizon software engineering and enterprise workflows. It supports low, medium, and high thinking levels, defaults to medium, and has a 1,048,576-token input context limit.

Benchmark scores

BenchmarkScore
AA-3D v1.0 Elo966
AA-AnalystAgent (pass@1)61.3
AA-AnalystAgent (pass@5)72.5
AA-AnalystAgent (pass^5)46.3
AA-Briefcase Elo1202
AA-Briefcase v1.1 Elo1202
AA-LCR v1.184.0
AA-Omniscience Index29.6
AA-Omniscience v1.1 Accuracy50.5
AA-Omniscience v1.1 Hallucination Rate51.5
AA-Omniscience v1.1 Index23.7
Agent Red Teaming k=100 (CAIS)29.8
AIME 202596.7
ALE-Bench2182
Android Bench 2.08.0
Android Bench 2.0 Completion47.4
Antidote: Everyday Edition1087
APEX (Mercor)19.9
APEX-Accounting51.7
APEX-Accounting Pass@18.7
APEX-Agents 1.172.9
APEX-Agents 1.1 Corporate Law (68-task image-free slice)82.7
APEX-Agents 1.1 Pass@164.3
APEX-SWE36.4
APEX-v1-extended68.8
ARC-AGI-1 Semi-Private98.5
ARC-AGI-289.2
ARC-AGI-3 (Semi-Private)35.0
Arena Alignment — Deceptive Completion16.3
Arena Alignment — False Attribution6.0
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