Model comparison

DeepSeek-V4-Flash-Vision-Exp vs GLM-5.3

Input: $0.22 off-peak · $0.44 peak
Output: $0.66 off-peak · $1.32 peak
Context: 1M
Released: 2026-08-21

Full model page →Z.ai (Zhipu / GLM)GLM-5.3

Input: $1.40
Output: $4.40
Context: 1M
Released: 2026-08-14

Short answer

GLM-5.3 scores higher on 2 of the 2 benchmarks both models report; DeepSeek-V4-Flash-Vision-Exp is cheaper on input tokens ($0.2 vs $1.4 per 1M, 6.4×).

Specs and pricing side by side

Spec	DeepSeek-V4-Flash-Vision-Exp	GLM-5.3
Maker	DeepSeek	Z.ai (Zhipu / GLM)
Released	2026-08-21	2026-08-14
Context window	1M	1Msame
Max output	384K	128K
Input price	$0.22 off-peak · $0.44 peak	$1.40
Output price	$0.66 off-peak · $1.32 peak	$4.40
Parameters	not published	Same base model as GLM-5.2 (744B total · 40B active)
License	MIT	GLM-5.3 License — a permissive, MIT-style grant to use, modify, distribute and fine-tune the weights, with one condition: a licensee running a Model-as-a-Service business whose aggregate revenue exceeds US$10 billion over any consecutive 12 months must pass a Z.ai security review before any commercial use
Weights	Open weights	Open weightssame
Modalities	Text, Vision	Text

Not published by either maker: knowledge cutoff.

Benchmarks both models report

Benchmark	DeepSeek-V4-Flash-Vision-Exp	GLM-5.3
Cybergym	75.3%	84.5%
Agents' Last Exam	27.3%	28.5%

Scores are as published by each maker or its cited source; harness, reasoning effort and date can differ between rows, so treat small gaps as ties. Sources are listed on each model page.

Which one should you pick?

Pick DeepSeek-V4-Flash-Vision-Exp if…

Cost matters: input tokens cost 6.4× less ($0.2 vs $1.4 per 1M).
You need Vision input, which GLM-5.3 lacks.
Your use case is: multimodal agent loops that must read screenshots, dashboards or UI state to decide the next action.

Pick GLM-5.3 if…

You care about Cybergym, Agents' Last Exam (it scores higher on 2 shared benchmarks).
Your use case is: long-horizon coding agents that must stay productive across hundreds of files and interdependent systems.

FAQ

Which is better, DeepSeek-V4-Flash-Vision-Exp or GLM-5.3?

GLM-5.3 scores higher on 2 of the 2 benchmarks both models report; DeepSeek-V4-Flash-Vision-Exp is cheaper on input tokens ($0.2 vs $1.4 per 1M, 6.4×). The better pick depends on whether you value benchmark scores, price per token, context length or openness for your workload.

How much cheaper is DeepSeek-V4-Flash-Vision-Exp?

DeepSeek-V4-Flash-Vision-Exp: $0.22 off-peak · $0.44 peak input, $0.66 off-peak · $1.32 peak output. GLM-5.3: $1.40 input, $4.40 output (list API prices as published by each maker).

What are the context windows of DeepSeek-V4-Flash-Vision-Exp and GLM-5.3?

DeepSeek-V4-Flash-Vision-Exp offers 1M with up to 384K output; GLM-5.3 offers 1M with up to 128K output.

Is DeepSeek-V4-Flash-Vision-Exp newer than GLM-5.3?

DeepSeek-V4-Flash-Vision-Exp was released 2026-08-21; GLM-5.3 was released 2026-08-14.