Gemini 3.5 Flash
MultimodalGemini 3.5 Flash is Google's fast frontier model in the Gemini 3.5 series, optimized for low latency and efficient scaling across chat, agentic, and multimodal workloads. It delivers strong performance on tool use and multimodal reasoning benchmarks such as MCP Atlas and MMMU-Pro. The model supports a 1M token input context window with up to 65.5K output tokens.
Key Specifications
Parameters
-
Context
1.0M
Release Date
May 19, 2026
Average Score
57.4%
Timeline
Key dates in the model's history
Announcement
May 19, 2026
Last Update
August 27, 2026
Today
September 8, 2026
Technical Specifications
Parameters
-
Training Tokens
-
Knowledge Cutoff
January 31, 2026
Family
-
Capabilities
MultimodalZeroEval
Pricing & Availability
Input (per 1M tokens)
$1.50
Output (per 1M tokens)
$9.00
Max Input Tokens
1.0M
Max Output Tokens
65.5K
Supported Features
Function CallingStructured OutputCode ExecutionWeb SearchBatch InferenceFine-tuning
Benchmark Results
Model performance metrics across various tests and benchmarks
Other Tests
Specialized benchmarks
CharXiv-R
No tools • Self-reported
MCP Atlas
• Self-reported
MMMU-Pro
No tools • Self-reported
OSWorld-Verified
• Self-reported
ARC-AGI v2
• Self-reported
Blueprint-Bench 2
Normalized score • Self-reported
DeepSWE 1.1
DeepSWE v1.1 leaderboard, mini-swe-agent harness, medium effort; Pass@1 37% ± 2%. • Verified
Finance Agent
Finance Agent v2 • Self-reported
Finance Agent v2
• Verified
Humanity's Last Exam
• Self-reported
Legal Agent Benchmark
All-pass rate (Harvey held-out set) • Verified
LiveBench
2026-01-08, High • Verified
MRCR v2 (8-needle)
1M (pointwise) • Self-reported
SWE-Bench Pro
SWE-Bench Pro (Public). Single attempt • Self-reported
Terminal-Bench 2.0
Terminus-2 harness (Terminal-Bench 2.1) • Self-reported
Toolathlon
• Self-reported
License & Metadata
License
proprietary
Announcement Date
May 19, 2026
Last Updated
August 27, 2026
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