Gemini 2.5 Flash Preview (09/2025)
State-of-the-art Gemini 2.5 Flash checkpoint tuned for advanced reasoning, coding, math, and scientific tasks. Built-in thinking for higher accuracy and nuanced context handling. Routed to Gemini 2.5 Flash (stable).
- Reasoning
- Vision
- Audio Input
- Native PDF input
- Tool Calling
- Structured Output
Added Sep 25, 2025
Pricing
Auto routing · per 1M tokens- Input
- $0.30
- Output
- $2.50
- Cache read
- $0.030
Specifications
- Context window
- 1M
- Max output
- 65.5K
Benchmarks
Benchmarks
Sourced from Artificial Analysis.
Intelligence Index
12.4
Agentic work
T²-Bench Telecom (legacy)
Legacy fallback · Conversational AI agents in dual-control scenarios
28.4%
Better than 35% of models compared
Document reasoning
AA-LCR v1.1
Long context reasoning with updated grading
60.0%
Better than 51% of models compared
Reasoning
HLE
Humanity's Last Exam
8.7%
Better than 47% of models compared
IFBench
Instruction-following benchmark
43.5%
Better than 48% of models compared
Coding
Terminal-Bench Hard (legacy)
Legacy fallback · Agentic coding and terminal use
14.4%
Better than 51% of models compared
LiveCodeBench
Contamination-free coding benchmark
62.5%
Better than 68% of models compared
Math
AIME 2025
American Invitational Mathematics Examination 2025
56.7%
Better than 54% of models compared
Knowledge
MMLU-Pro
Professional and academic subject knowledge
83.6%
Better than 85% of models compared
Legacy benchmarks
GPQA Diamond (legacy)
Graduate-level scientific reasoning
76.6%
Better than 60% of models compared
AA-LCR (unversioned / legacy)
Long context reasoning evaluation
60.0%
Better than 51% of models compared
Last updated Oct 3, 2026
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