DeepSeek-V4-Flash-Vision-Exp vs Seed 2.1 Pro
DeepSeek-V4-Flash-Vision-Exp and Seed 2.1 Pro are closely matched at 46.0 and 46.3 on the LLM Stats Score.
DeepSeek · ByteDance · Updated for 2026
Which is better?
DeepSeek-V4-Flash-Vision-Exp and Seed 2.1 Pro are closely matched on the overall LLM Stats Score at 46.0 and 46.3.
In the 5 individual benchmarks reported for both models, DeepSeek-V4-Flash-Vision-Exp wins 4; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose DeepSeek-V4-Flash-Vision-Exp
- you value its reported benchmark strengths — it wins 4 of 5 exact shared results
- you want the most recent training data — it shipped Aug 2026
Choose Seed 2.1 Pro
- you are already invested in the ByteDance ecosystem
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
7 reported for DeepSeek-V4-Flash-Vision-Exp · 94 for Seed 2.1 Pro
DeepSeek-V4-Flash-Vision-Exp outperforms in 4 benchmarks (DeepSWE, NL2Repo, Terminal-Bench 2.1, ZEROBench), while Seed 2.1 Pro is better at 1 benchmark (Agents' Last Exam).
DeepSeek-V4-Flash-Vision-Exp significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only DeepSeek-V4-Flash-Vision-Exp specifies input context (1,048,576 tokens). Only DeepSeek-V4-Flash-Vision-Exp specifies output context (393,216 tokens).
Input capabilities
Documented input modalities across available providers
Both DeepSeek-V4-Flash-Vision-Exp and Seed 2.1 Pro support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
DeepSeek-V4-Flash-Vision-Exp
Seed 2.1 Pro
Release Timeline
When each model was launched
DeepSeek-V4-Flash-Vision-Exp was released on 2026-08-21, while Seed 2.1 Pro was released on 2026-06-24.
DeepSeek-V4-Flash-Vision-Exp is 2 months newer than Seed 2.1 Pro.
Aug 21, 2026
3 weeks ago
1mo newerJun 24, 2026
2 months ago
Knowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Outputs Comparison
Judge for yourself.
Run your own prompts against DeepSeek-V4-Flash-Vision-Exp and Seed 2.1 Pro side-by-side, then vote on the output you prefer.
FAQ
Common questions about DeepSeek-V4-Flash-Vision-Exp vs Seed 2.1 Pro.