Model profile
Google

Gemini 2.5 Flash Preview (Sep '25) (Reasoning)

Gemini 2.5 Flash Preview (Sep '25) (Reasoning) is a budget-priced text-first model from Google with partial runtime data, partial context coverage, and the clearest fit around agent workflows / reasoning.

Best for: Agent workflows / ReasoningN/A latencyN/A contextBudget pricing
Intelligence
31.1

Benchmark blend

Coding
24.6

Dev workflow signal

Context
N/A

N/A

Input Price
$0.00

Budget tier

Decision snapshot
43

Gemini 2.5 Flash Preview (Sep '25) (Reasoning) currently reads as a budget text-first option with partially published context and a partially published runtime profile.

Overall profile
Use-case specific
Best for
Agent workflows / Reasoning
Latency tier
N/A
Price tier
Budget
Source coverage
OpenRouterArtificial Analysis

Decision Strip

Decision rail before the raw tables

Core buy-side signals stay in one pass. The rest of the page expands only after intelligence, speed, context, and price are clear.

Intelligence
31.1
31

General reasoning and benchmark headroom.

Limited
Speed
N/A
N/A

Latency data is partial.

Unavailable
Context
N/A
N/A

How much prompt and task state can stay in view.

Unavailable
Price
$0.00
86

$0.00 output / 1M

Efficient

Editorial Profile

Gemini 2.5 Flash Preview (Sep '25) (Reasoning) in one narrative

Positioning, tradeoffs, and fit are consolidated into one read instead of repeating the same story across separate cards.

Use-case specificCoding score 25Math score 78

The Gemini 2.5 Flash Preview (Sep '25) (Reasoning) AI model by Google.

Identity

Google text-first profile

Positioning

Agent workflows / Reasoning with partially published context and partially published runtime.

Cost posture

Efficient spend profile. More comfortable for sustained prompt volume if the capability fit is right.

Strengths
  • The available source data suggests a balanced profile rather than one dominant edge.

Tradeoffs
  • Budget-friendly input pricing is a strength, but raw capability may vary by workload.

  • Latency data is incomplete, so interactive responsiveness is harder to rank confidently.

  • Current metadata points to a text-first profile rather than a broad multimodal one.

  • Context limits are only partially published, so long-session planning needs extra validation.

Best fit
  • Focused chat, retrieval-augmented flows, and narrower production tasks.

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Context
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Input Price
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Intelligence
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Context
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Intelligence
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Context
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Input Price
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Benchmarks

Grouped by job-to-be-done

Only benchmark categories with actual signal are shown. Secondary values stay as simple definitions instead of nested micro-cards.

General intelligence

Broad reasoning, knowledge depth, and flagship benchmark posture.

Intelligence Index
31.1
MMLU Pro
84.2%
GPQA
79.3%
HLE
12.7%
Coding

Software implementation, debugging quality, and coding benchmark signal.

Coding Index
24.6
LiveCodeBench
0.713
SciCode
40.5%
Math

Formal reasoning, structured problem solving, and competition-style math.

Math Index
78.3
AIME 2025
78.3%
Agent / tool use

Long-horizon execution quality and interactive benchmark evidence.

IFBench
52.3%
TAU2
45.6%
TerminalBench Hard
16.7%
LCR
64.3%

Specs & Pricing

Technical snapshot and cost posture

Specs stay neutral, pricing gets emphasis through values rather than extra containers. Raw provider internals remain in metadata at the end.

Technical snapshot
Context Window
N/A
Vision
Text-first
Price architecture
Input
per 1M input tokens
$0.00
Output
per 1M output tokens
$0.00
Blended
AA 3:1 mix
$0.00

This model is relatively efficient on price. It is the easier fit when sustained prompt volume matters.

Metadata

Raw source tables at the end

Verification details remain available, but the page no longer forces them ahead of the editorial read.