DeepSeek-V4.1-Flash-1017 vs Step 3.7 Flash
DeepSeek-V4.1-Flash-1017 leads the LLM Stats Score 51.2 to 29.7. Step 3.7 Flash is 1.2x cheaper per token.
DeepSeek · StepFun · Updated for 2026
Which is better?
DeepSeek-V4.1-Flash-1017 leads the overall LLM Stats Score 51.2 to 29.7, ranking #15 overall.
On price, Step 3.7 Flash is roughly 1.2x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
DeepSeek-V4.1-Flash-1017 also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose DeepSeek-V4.1-Flash-1017
- overall performance matters — it scores 51.2 and ranks #15 on LLM Stats
- your work emphasizes reasoning and coding — it leads those capability indexes
- you process long inputs — it offers a 1,048,576 token context window
- you want the most recent training data — it shipped Oct 2026
Choose Step 3.7 Flash
- cost matters — it's about 1.2x cheaper per token
At a glance
The differences that matter most.
Individual benchmarks
11 reported for DeepSeek-V4.1-Flash-1017 · 4 for Step 3.7 Flash
DeepSeek-V4.1-Flash-1017 and Step 3.7 Flashdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, DeepSeek-V4.1-Flash-1017 ($0.30/1M tokens) is 1.5x more expensive than Step 3.7 Flash ($0.20/1M tokens).
For output processing, DeepSeek-V4.1-Flash-1017 ($1.20/1M tokens) is 1.0x more expensive than Step 3.7 Flash ($1.15/1M tokens).
In conclusion, DeepSeek-V4.1-Flash-1017 is more expensive than Step 3.7 Flash.*
* Using a 3:1 ratio of input to output tokens
Model Size
Parameter count comparison
DeepSeek-V4.1-Flash-1017 has 565.2B more parameters than Step 3.7 Flash, making it 285.5% larger.
Context Window
Maximum input and output token capacity
DeepSeek-V4.1-Flash-1017 accepts 1,048,576 input tokens compared to Step 3.7 Flash's 262,144 tokens. DeepSeek-V4.1-Flash-1017 can generate longer responses up to 393,216 tokens, while Step 3.7 Flash is limited to 262,144 tokens.
Input capabilities
Documented input modalities across available providers
Both DeepSeek-V4.1-Flash-1017 and Step 3.7 Flash support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
DeepSeek-V4.1-Flash-1017
Step 3.7 Flash
License
Usage and distribution terms
DeepSeek-V4.1-Flash-1017 is licensed under MIT, while Step 3.7 Flash uses Apache 2.0.
License differences may affect how you can use these models in commercial or open-source projects.
MIT
Open weights
Apache 2.0
Open weights
Release Timeline
When each model was launched
DeepSeek-V4.1-Flash-1017 was released on 2026-10-17, while Step 3.7 Flash was released on 2026-06-10.
DeepSeek-V4.1-Flash-1017 is 4 months newer than Step 3.7 Flash.
Oct 17, 2026
1 weeks ago
4mo newerJun 10, 2026
4 months ago
Knowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
DeepSeek-V4.1-Flash-1017 is available from DeepSeek. Step 3.7 Flash is available from DeepInfra.
DeepSeek-V4.1-Flash-1017
Step 3.7 Flash
Outputs Comparison
Judge for yourself.
Run your own prompts against DeepSeek-V4.1-Flash-1017 and Step 3.7 Flash side-by-side, then vote on the output you prefer.
FAQ
Common questions about DeepSeek-V4.1-Flash-1017 vs Step 3.7 Flash.