Models

Gemini 2.5 Flash Preview 09 2025 vs Step 3.7 Flash

Compare Gemini 2.5 Flash Preview 09 2025 from Google and Step 3.7 Flash from StepFun on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.

GoogleGemini 2.5 Flash Preview 09 2025StepFunStep 3.7 Flash
Google logo
Gemini 2.5 Flash Preview 09 2025
Google · text, image, video, audio → text

This latest 2.5 Flash model comes with improvements in two key areas we heard consistent feedback on: Better agentic tool use: We've improved how the model uses tools, leading to better performance in more complex, agentic and multi-step applications. This model shows noticeable improvements on key agentic benchmarks, including a 5% gain on SWE-Bench Verified, compared to our last release (48.9% → 54%). More efficient: With thinking on, the model is now significantly more cost-efficient—achieving higher quality outputs while using fewer tokens, reducing latency and cost (see charts above).

Input$0.3 /M
Output$2.499 /M
Cache read$0.075 /M
StepFun logo
Step 3.7 Flash
StepFun · text, image, video → text

step-3.7-flash is stepfun's flagship inference model, designed for high-complexity tasks that require deep reasoning and fast execution. It excels at decomposing multi-step problems, performing tool calls, and maintaining consistency across massive datasets. It is the preferred choice for complex workloads such as long-context agents, advanced software engineering, and end-to-end research automation.

Input$0.22 /M
Output$1.32 /M
Cache read$0.044 /M

Pricing & Specifications

Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.

Gemini 2.5 Flash Preview 09 2025
Step 3.7 Flash
Input /M
$0.3
$0.22
Output /M
$2.499
$1.32
Cache read /M
$0.075
$0.044
Context length
1,048,576
256,000
Max output
65,536
0
Time to First Token
0.4 s
-
Throughput
144.3 tok/s
-
Modalities
textimagevideoaudio
textimagevideo
Supported Parameters
toolsfunction callingstructured outputs
API Formats
Released
-
-

Promotional prices show the discounted rate; see each model page for promotion windows.

Activity Past 30 Days

Daily traffic served through AIHubMix — how demand for each model is trending.

gemini-2.5-flash-preview-09-2025step-3.7-flash

Tokens / day

-

Requests / day

-

Performance Past 3 Days

Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.

gemini-2.5-flash-preview-09-2025step-3.7-flash

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

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Cost calculator

Estimate your monthly bill for the same workload on each model.

Step 3.7 Flash
$33.00 /mo
Gemini 2.5 Flash Preview 09 2025
$55.49 /mo

Monthly = daily × 30. Discounted rates applied where a promotion is active.

FAQ

Which is cheaper: Gemini 2.5 Flash Preview 09 2025, Step 3.7 Flash?

Step 3.7 Flash: $1.32/M output tokens; Gemini 2.5 Flash Preview 09 2025: $2.499/M. Use the cost calculator above to estimate your own workload.

How large is each context window?

Gemini 2.5 Flash Preview 09 2025 accepts 1,048,576 and Step 3.7 Flash accepts 256,000 input tokens.

What inputs and capabilities does each model support?

Gemini 2.5 Flash Preview 09 2025 accepts text, image, video and audio input and supports tool calling, function calling and structured outputs; Step 3.7 Flash accepts text, image and video input.

Can I call Gemini 2.5 Flash Preview 09 2025 and Step 3.7 Flash with the same API key?

Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.

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