DeepSeek-V4-Flash-Vision-Exp vs GLM-5.3-Flash
Both models are evenly matched across the benchmarks. GLM-5.3-Flash is 1.4x cheaper per token.
DeepSeek · Zhipu AI · Updated for 2026
Which is better?
DeepSeek-V4-Flash-Vision-Exp outperforms in 2 benchmarks (Agents' Last Exam, NL2Repo), while GLM-5.3-Flash is better at 2 benchmarks (AutomationBench, Terminal-Bench 2.1). Both models are evenly matched across the benchmarks.
On price, GLM-5.3-Flash is roughly 1.4x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
DeepSeek-V4-Flash-Vision-Exp 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 benchmark, pricing, and model metadata for 2026.
Choose DeepSeek-V4-Flash-Vision-Exp
- you process long inputs — it offers a 1,048,576 token context window
Choose GLM-5.3-Flash
- cost matters — it's about 1.4x cheaper per token
- you want the most recent training data — it shipped Aug 2026
- 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 2 benchmarks (Agents' Last Exam, NL2Repo), while GLM-5.3-Flash is better at 2 benchmarks (AutomationBench, Terminal-Bench 2.1).
Both models are evenly matched across the 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 1.5x more expensive than GLM-5.3-Flash ($0.15/1M tokens).
For output processing, DeepSeek-V4-Flash-Vision-Exp ($0.66/1M tokens) is 1.3x more expensive than GLM-5.3-Flash ($0.50/1M tokens).
In conclusion, DeepSeek-V4-Flash-Vision-Exp is more expensive than GLM-5.3-Flash.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
DeepSeek-V4-Flash-Vision-Exp accepts 1,048,576 input tokens compared to GLM-5.3-Flash's 1,000,000 tokens. DeepSeek-V4-Flash-Vision-Exp can generate longer responses up to 393,216 tokens, while GLM-5.3-Flash is limited to 131,072 tokens.
Input Capabilities
Supported data types and modalities
Both DeepSeek-V4-Flash-Vision-Exp and GLM-5.3-Flash support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
DeepSeek-V4-Flash-Vision-Exp
GLM-5.3-Flash
Release Timeline
When each model was launched
DeepSeek-V4-Flash-Vision-Exp was released on 2026-08-21, while GLM-5.3-Flash was released on 2026-08-26.
GLM-5.3-Flash is 0 month newer than DeepSeek-V4-Flash-Vision-Exp.
Aug 21, 2026
5 days ago
Aug 26, 2026
0 days ago
5d 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. GLM-5.3-Flash is available from ZAI.
DeepSeek-V4-Flash-Vision-Exp
GLM-5.3-Flash
Outputs Comparison
Judge for yourself.
Run your own prompts against DeepSeek-V4-Flash-Vision-Exp and GLM-5.3-Flash side-by-side, then vote on the output you prefer.
FAQ
Common questions about DeepSeek-V4-Flash-Vision-Exp vs GLM-5.3-Flash.