Monthly cost at list price for five common workloads. Token counts per unit are stated so you can scale them to your own traffic. A workload that does not fit a model's context window is marked rather than priced.
Workload (per month)
DeepSeek: DeepSeek V4 Flash Vision Exp
Z.ai: GLM 5.3 (batch)
Difference
Customer-support chatbot
50,000 conversations — each a 6-turn conversation (1,500 in / 400 out tokens)
cost matters at scale — it is 61% cheaper on a typical 3:1 input/output mix ($29.11 vs $73.75 a month for 50,000 support chats)
you need image input — to read screenshots, charts and scanned pages; Z.ai: GLM 5.3 (batch) does not advertise it
you need log-probabilities — to read token confidence for classification and scoring; Z.ai: GLM 5.3 (batch) does not advertise it
you generate long outputs in one go — up to 262K tokens (about 196,600 words) per response
Choose Z.ai: GLM 5.3 (batch) if…
No advantage on the data we track — pick it for provider preference or output quality on your own prompts.
Frequently asked questions
Is DeepSeek: DeepSeek V4 Flash Vision Exp better than Z.ai: GLM 5.3 (batch)?
DeepSeek: DeepSeek V4 Flash Vision Exp comes out ahead on the data we track: 4 advantages and none for Z.ai: GLM 5.3 (batch).
Which is cheaper, DeepSeek: DeepSeek V4 Flash Vision Exp or Z.ai: GLM 5.3 (batch)?
DeepSeek: DeepSeek V4 Flash Vision Exp is cheaper: $0.32 vs $0.84 per 1M tokens at a typical 3:1 input/output mix, 61% less. For 50,000 support conversations a month that is $29.11 against $73.75.
How much do DeepSeek: DeepSeek V4 Flash Vision Exp and Z.ai: GLM 5.3 (batch) cost per million tokens?
DeepSeek: DeepSeek V4 Flash Vision Exp costs $0.22 per 1M input tokens and $0.65 per 1M output tokens; Z.ai: GLM 5.3 (batch) costs $0.45 input and $2.00 output. Output tokens are billed separately, so long answers shift the gap.
Which has the bigger context window, DeepSeek: DeepSeek V4 Flash Vision Exp or Z.ai: GLM 5.3 (batch)?
Both take 1.0M tokens per request — roughly 1,573 pages of text.
Do DeepSeek: DeepSeek V4 Flash Vision Exp and Z.ai: GLM 5.3 (batch) support function calling and JSON output?
Can DeepSeek: DeepSeek V4 Flash Vision Exp or Z.ai: GLM 5.3 (batch) read images?
Only DeepSeek: DeepSeek V4 Flash Vision Exp accepts image input; Z.ai: GLM 5.3 (batch) is text-only for input.
Is DeepSeek: DeepSeek V4 Flash Vision Exp or Z.ai: GLM 5.3 (batch) free to use?
No free variant is listed for either; both are pay-per-token.
What is the maximum output length of DeepSeek: DeepSeek V4 Flash Vision Exp and Z.ai: GLM 5.3 (batch)?
DeepSeek: DeepSeek V4 Flash Vision Exp can write up to 262K tokens (about 196,600 words) per response; Z.ai: GLM 5.3 (batch) up to 131K (about 98,300 words).
When were DeepSeek: DeepSeek V4 Flash Vision Exp and Z.ai: GLM 5.3 (batch) released?
DeepSeek: DeepSeek V4 Flash Vision Exp was listed on 2026-08-21; Z.ai: GLM 5.3 (batch) on 2026-08-18.
Has the price of DeepSeek: DeepSeek V4 Flash Vision Exp or Z.ai: GLM 5.3 (batch) changed?
DeepSeek V4 Flash Vision Exp is an experimental vision-enabled version of [DeepSeek V4 Flash 0731](https://openrouter.ai/deepseek/deepseek-v4-flash-0731) from DeepSeek, adding image understanding while matching the base model on text capabilities including agents,...
GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. It supports text input and output with a 1M-token context window, and improves...