DeepSeek-V4-Flash-Vision-Exp vs LongCat-2.5
DeepSeek-V4-Flash-Vision-Exp and LongCat-2.5 are closely matched at 43.3 and 50.0 on the LLM Stats Score. DeepSeek-V4-Flash-Vision-Exp is 1.6x cheaper per token.
DeepSeek · Meituan · Updated for 2026
Which is better?
DeepSeek-V4-Flash-Vision-Exp and LongCat-2.5 are closely matched on the overall LLM Stats Score at 43.3 and 50.0.
In the 2 individual benchmarks reported for both models, LongCat-2.5 wins 2; this is a narrower head-to-head signal than the composite indexes.
On price, DeepSeek-V4-Flash-Vision-Exp is roughly 1.6x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose DeepSeek-V4-Flash-Vision-Exp
- cost matters — it's about 1.6x cheaper per token
Choose LongCat-2.5
- you value its reported benchmark strengths — it wins 2 of 2 exact shared results
- you want the most recent training data — it shipped Nov 2026
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 · 23 for LongCat-2.5
DeepSeek-V4-Flash-Vision-Exp outperforms in 0 benchmarks, while LongCat-2.5 is better at 2 benchmarks (NL2Repo, Terminal-Bench 2.1).
LongCat-2.5 significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, DeepSeek-V4-Flash-Vision-Exp ($0.22/1M tokens) is 1.4x cheaper than LongCat-2.5 ($0.30/1M tokens).
For output processing, DeepSeek-V4-Flash-Vision-Exp ($0.66/1M tokens) is 1.8x cheaper than LongCat-2.5 ($1.20/1M tokens).
In conclusion, LongCat-2.5 is more expensive than DeepSeek-V4-Flash-Vision-Exp.*
* 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 LongCat-2.5 is limited to 131,072 tokens.
Input capabilities
Documented input modalities across available providers
Both DeepSeek-V4-Flash-Vision-Exp and LongCat-2.5 support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
DeepSeek-V4-Flash-Vision-Exp
LongCat-2.5
Release Timeline
When each model was launched
DeepSeek-V4-Flash-Vision-Exp was released on 2026-08-21, while LongCat-2.5 was released on 2026-11-01.
LongCat-2.5 is 2 months newer than DeepSeek-V4-Flash-Vision-Exp.
Aug 21, 2026
2 months ago
Nov 1, 2026
0 days ago
2mo 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-Vision-Exp is available from DeepSeek, DeepInfra. LongCat-2.5 is available from Meituan.
DeepSeek-V4-Flash-Vision-Exp
LongCat-2.5
Outputs Comparison
Judge for yourself.
Run your own prompts against DeepSeek-V4-Flash-Vision-Exp and LongCat-2.5 side-by-side, then vote on the output you prefer.
FAQ
Common questions about DeepSeek-V4-Flash-Vision-Exp vs LongCat-2.5.