Google's most intelligent shipping Gemini model as of May 2026, delivering sustained frontier performance on agentic and coding tasks; generally available and outperforms Gemini 3.1 Pro on several coding/agentic benchmarks.
profile normalized against the 47-model field
Context window· 1.05M of 1.05M100%
Max output· 66K of 272K24%
Output speed—
Affordability· $9.00 / Mtok out95%
Capability breadth· 3 of 1127%
Capability switches · 3 of 11
Reasoning mode
Tool / function use
Streaming
JSON mode
Structured outputs
Prompt caching
Fine-tuning
Web search
Code execution
Vision input
Audio input
Specifications
Every value carries a primary source and a verification date.
Capacity
Context window
1.05M
Max output
66K
Pricing
Input $/Mtok
$1.50 / Mtok input USD/Mtok
Output $/Mtok
$9.00 / Mtok output USD/Mtok
Capabilities
Input modalities
Text, Image, Video, Audio, PDF
Output modalities
Text
Reasoning mode
Thinking: Supported
Tool / function use
true
Vision input
Image input supported
API
API model ID
gemini-3.5-flash
General
Knowledge cutoff
January 2025
Release date
May 2026
Benchmarks
Sourced evaluation scores, each verified against its primary source.
SWE-bench Pro
SWE-Bench Pro (Public), Single attempt: 55.1%
55.1 %Verified
GPQA Diamond
On GPQA Diamond, Gemini 3.5 Flash at ~92.2% trails Gemini 3.1 Pro
92.2 %Unverified
Humanity's Last Exam (no tools)
Humanity's Last Exam (Full set, text + multimodal): 40.2%