DeepSeek-V4-Flash-0731 vs DeepSeek-V4-Flash-Vision-Exp
DeepSeek-V4-Flash-Vision-Exp significantly outperforms across most benchmarks. DeepSeek-V4-Flash-0731 is 2.9x cheaper per token.
DeepSeek · DeepSeek · Updated for 2026
Which is better?
DeepSeek-V4-Flash-0731 outperforms in 0 benchmarks, while DeepSeek-V4-Flash-Vision-Exp is better at 6 benchmarks (Agents' Last Exam, AutomationBench, DeepSWE, DSBench-Hard, NL2Repo, Terminal-Bench 2.1). DeepSeek-V4-Flash-Vision-Exp significantly outperforms across most benchmarks.
On price, DeepSeek-V4-Flash-0731 is roughly 2.9x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Based on current benchmark, pricing, and model metadata for 2026.
Choose DeepSeek-V4-Flash-0731
- cost matters — it's about 2.9x cheaper per token
- you need open weights you can self-host or fine-tune
Choose DeepSeek-V4-Flash-Vision-Exp
- you want the strongest raw capability — it leads on 6 of 6 shared benchmarks
- you want the most recent training data — it shipped Aug 2026
At a glance
The differences that matter most.
Performance Benchmarks
Comparative analysis across standard metrics
DeepSeek-V4-Flash-0731 outperforms in 0 benchmarks, while DeepSeek-V4-Flash-Vision-Exp is better at 6 benchmarks (Agents' Last Exam, AutomationBench, DeepSWE, DSBench-Hard, NL2Repo, Terminal-Bench 2.1).
DeepSeek-V4-Flash-Vision-Exp significantly outperforms across most benchmarks.
Arena Performance
Playground indexes and blind preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, DeepSeek-V4-Flash-0731 ($0.09/1M tokens) is 2.4x cheaper than DeepSeek-V4-Flash-Vision-Exp ($0.22/1M tokens).
For output processing, DeepSeek-V4-Flash-0731 ($0.18/1M tokens) is 3.7x cheaper than DeepSeek-V4-Flash-Vision-Exp ($0.66/1M tokens).
In conclusion, DeepSeek-V4-Flash-Vision-Exp is more expensive than DeepSeek-V4-Flash-0731.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Both models have the same input context window of 1,048,576 tokens. DeepSeek-V4-Flash-Vision-Exp can generate longer responses up to 393,216 tokens, while DeepSeek-V4-Flash-0731 is limited to 65,536 tokens.
Input Capabilities
Supported data types and modalities
DeepSeek-V4-Flash-Vision-Exp supports multimodal inputs, whereas DeepSeek-V4-Flash-0731 does not.
DeepSeek-V4-Flash-Vision-Exp can handle both text and other forms of data like images, making it suitable for multimodal applications.
DeepSeek-V4-Flash-0731
DeepSeek-V4-Flash-Vision-Exp
Release Timeline
When each model was launched
DeepSeek-V4-Flash-0731 was released on 2026-07-31, while DeepSeek-V4-Flash-Vision-Exp was released on 2026-08-21.
DeepSeek-V4-Flash-Vision-Exp is 1 month newer than DeepSeek-V4-Flash-0731.
Jul 31, 2026
3 weeks ago
Aug 21, 2026
3 days ago
3w newerKnowledge 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-Flash-0731 is available from DeepInfra, Novita, Fireworks. DeepSeek-V4-Flash-Vision-Exp is available from DeepSeek.
DeepSeek-V4-Flash-0731
DeepSeek-V4-Flash-Vision-Exp
Outputs Comparison
Judge for yourself.
Run your own prompts against DeepSeek-V4-Flash-0731 and DeepSeek-V4-Flash-Vision-Exp side-by-side, then vote on the output you prefer.
FAQ
Common questions about DeepSeek-V4-Flash-0731 vs DeepSeek-V4-Flash-Vision-Exp.