Model Comparison
Gemini 3.6 Flash vs Step-3.5-FlashWhich is better in 2026?
Comparing Gemini 3.6 Flash and Step-3.5-Flash across benchmarks, pricing, and capabilities.
Verdict: Gemini 3.6 Flash vs Step-3.5-Flash — which is better?
Gemini 3.6 Flash (by Google) and Step-3.5-Flash (by StepFun) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.
On price, Step-3.5-Flash is roughly 17.1x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Gemini 3.6 Flash also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.
Choose Gemini 3.6 Flash if…
- you process long inputs — it offers a 1,048,576 token context window
- you want the most recent training data — it shipped Jul 2026
Choose Step-3.5-Flash if…
- cost matters — it's about 17.1x cheaper per token
- you need open weights you can self-host or fine-tune
Performance Benchmarks
Comparative analysis across standard metrics
Gemini 3.6 Flash and Step-3.5-Flashdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, Gemini 3.6 Flash ($1.50/1M tokens) is 15.0x more expensive than Step-3.5-Flash ($0.10/1M tokens).
For output processing, Gemini 3.6 Flash ($7.50/1M tokens) is 18.8x more expensive than Step-3.5-Flash ($0.40/1M tokens).
In conclusion, Gemini 3.6 Flash is more expensive than Step-3.5-Flash.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Gemini 3.6 Flash accepts 1,048,576 input tokens compared to Step-3.5-Flash's 65,536 tokens. Gemini 3.6 Flash can generate longer responses up to 65,536 tokens, while Step-3.5-Flash is limited to 8,192 tokens.
Input Capabilities
Supported data types and modalities
Gemini 3.6 Flash supports multimodal inputs, whereas Step-3.5-Flash does not.
Gemini 3.6 Flash can handle both text and other forms of data like images, making it suitable for multimodal applications.
Gemini 3.6 Flash
Step-3.5-Flash
License
Usage and distribution terms
Gemini 3.6 Flash is licensed under a proprietary license, while Step-3.5-Flash uses Apache 2.0.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
Apache 2.0
Open weights
Release Timeline
When each model was launched
Gemini 3.6 Flash was released on 2026-07-21, while Step-3.5-Flash was released on 2026-02-02.
Gemini 3.6 Flash is 6 months newer than Step-3.5-Flash.
Jul 21, 2026
0 days ago
5mo newerFeb 2, 2026
5 months ago
Knowledge Cutoff
When training data ends
Gemini 3.6 Flash has a documented knowledge cutoff of 2026-03-31, while Step-3.5-Flash's cutoff date is not specified.
We can confirm Gemini 3.6 Flash's training data extends to 2026-03-31, but cannot make a direct comparison without Step-3.5-Flash's cutoff date.
Mar 2026
—
Provider Availability
Gemini 3.6 Flash is available from Google. Step-3.5-Flash is available from StepFun.
Gemini 3.6 Flash
Step-3.5-Flash
Outputs Comparison
Key Takeaways
Step-3.5-Flash
View detailsStepFun
Detailed Comparison
Interactive Arena
Judge for yourself.
Run your own prompts against Gemini 3.6 Flash and Step-3.5-Flash side-by-side, then vote on the output you prefer.
| Feature | | |
|---|
FAQ
Common questions about Gemini 3.6 Flash vs Step-3.5-Flash.