Models

gemini-2.5-pro-exp-03-25 vs Step 3.7 Flash

Compare gemini-2.5-pro-exp-03-25 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-pro-exp-03-25StepFunStep 3.7 Flash
Google logo
gemini-2.5-pro-exp-03-25
Google · text, image, audio, video → text

Google’s latest experimental model, highly unstable, for experience only. It boasts strong reasoning and coding capabilities, able to "think" before responding, enhancing performance and accuracy in complex tasks. It supports multimodal inputs (text, audio, images, video) and a 1 million token context window, suitable for advanced programming, math, and science tasks. This means Gemini 2.5 can handle more complex problems in coding, science and math, and support more context-aware agents.

Input$1.25 /M
Output$5 /M
Cache read$0.125 /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-pro-exp-03-25
Step 3.7 Flash
Input /M
$1.25
$0.22
Output /M
$5
$1.32
Cache read /M
$0.125
$0.044
Context length
0
256,000
Max output
0
0
Time to First Token
8.3 s
1.4 s
Throughput
122.0 tok/s
32.6 tok/s
Modalities
textimageaudiovideo
textimagevideo
Supported Parameters
structured outputstoolslong context
API Formats
Released
March 25, 2025
May 29, 2026

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-pro-exp-03-25step-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-pro-exp-03-25step-3.7-flash

Throughput (tok/s)

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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-pro-exp-03-25
$150 /mo

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

FAQ

Which is cheaper: gemini-2.5-pro-exp-03-25, Step 3.7 Flash?

Step 3.7 Flash: $1.32/M output tokens; gemini-2.5-pro-exp-03-25: $5/M. Use the cost calculator above to estimate your own workload.

Which responds faster?

Step 3.7 Flash: 1.4s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.

Which one generates tokens faster?

gemini-2.5-pro-exp-03-25 at 122.0 tok/s and Step 3.7 Flash at 32.6 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.

What inputs and capabilities does each model support?

gemini-2.5-pro-exp-03-25 accepts text, image, audio and video input and supports structured outputs, tool calling and long context; Step 3.7 Flash accepts text, image and video input.

Can I call gemini-2.5-pro-exp-03-25 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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