DeepSeek-V4-Flash-Vision-Exp vs Kimi K3
Kimi K3 significantly outperforms across most benchmarks. DeepSeek-V4-Flash-Vision-Exp is 18.2x cheaper per token.
DeepSeek · Moonshot AI · Updated for 2026
Which is better?
DeepSeek-V4-Flash-Vision-Exp outperforms in 0 benchmarks, while Kimi K3 is better at 4 benchmarks (AutomationBench, DeepSWE, Terminal-Bench 2.1, ZEROBench). Kimi K3 significantly outperforms across most benchmarks.
On price, DeepSeek-V4-Flash-Vision-Exp is roughly 18.2x 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-Vision-Exp
- cost matters — it's about 18.2x cheaper per token
- you want the most recent training data — it shipped Aug 2026
Choose Kimi K3
- you want the strongest raw capability — it leads on 4 of 4 shared benchmarks
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Performance Benchmarks
Comparative analysis across standard metrics
DeepSeek-V4-Flash-Vision-Exp outperforms in 0 benchmarks, while Kimi K3 is better at 4 benchmarks (AutomationBench, DeepSWE, Terminal-Bench 2.1, ZEROBench).
Kimi K3 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-Vision-Exp ($0.22/1M tokens) is 13.6x cheaper than Kimi K3 ($3.00/1M tokens).
For output processing, DeepSeek-V4-Flash-Vision-Exp ($0.66/1M tokens) is 22.7x cheaper than Kimi K3 ($15.00/1M tokens).
In conclusion, Kimi K3 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. Kimi K3 can generate longer responses up to 1,048,576 tokens, while DeepSeek-V4-Flash-Vision-Exp is limited to 393,216 tokens.
Input Capabilities
Supported data types and modalities
Both DeepSeek-V4-Flash-Vision-Exp and Kimi K3 support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
DeepSeek-V4-Flash-Vision-Exp
Kimi K3
Release Timeline
When each model was launched
DeepSeek-V4-Flash-Vision-Exp was released on 2026-08-21, while Kimi K3 was released on 2026-07-16.
DeepSeek-V4-Flash-Vision-Exp is 1 month newer than Kimi K3.
Aug 21, 2026
5 days ago
1mo newerJul 16, 2026
1 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-Flash-Vision-Exp is available from DeepSeek. Kimi K3 is available from Fireworks, Moonshot AI, Novita, Together.
DeepSeek-V4-Flash-Vision-Exp
Kimi K3
Outputs Comparison
Judge for yourself.
Run your own prompts against DeepSeek-V4-Flash-Vision-Exp and Kimi K3 side-by-side, then vote on the output you prefer.
FAQ
Common questions about DeepSeek-V4-Flash-Vision-Exp vs Kimi K3.