GLM 5.3 Prime vs DeepSeek V4 Flash Latest: pricing comparison
DeepSeek V4 Flash Latest is the cheaper option at $0.01/$1.28 per 1M input/output tokens — GLM 5.3 Prime ($2.80/$8.80) costs about 280x more per input token. Full spec-by-spec breakdown below.
| GLM 5.3 Prime | DeepSeek V4 Flash Latest | |
|---|---|---|
| Input /1M tokens | $2.80 | $0.01 |
| Output /1M tokens | $8.80 | $1.28 |
| Cache read /1M | $0.56 | $0.01 |
| Context window | 1M | 1.0M |
| Provider | Z-ai | ~deepseek |
| Vision input | No | No |
| Released | Sep 2026 | Aug 2026 |
Real workload costs: GLM 5.3 Prime vs DeepSeek V4 Flash Latest
Cost per single request at common token profiles — the cheapest model for each workload is highlighted.
| Workload | Tokens (in / out) | GLM 5.3 Prime | DeepSeek V4 Flash Latest |
|---|---|---|---|
| Chatbot message | 500 / 300 | $0.0040 | $0.0004 |
| RAG query with context | 4,000 / 500 | $0.02 | $0.0007 |
| Document summarization | 20,000 / 1,000 | $0.06 | $0.0015 |
| Agent coding session | 100,000 / 5,000 | $0.32 | $0.0074 |
Frequently asked questions
Which is cheaper: GLM 5.3 Prime vs DeepSeek V4 Flash Latest?
DeepSeek V4 Flash Latest is the cheapest on input tokens at $0.01 per 1M, and DeepSeek V4 Flash Latest is cheapest on output at $1.28 per 1M. GLM 5.3 Prime costs about 280x more per input token than DeepSeek V4 Flash Latest.
How much does GLM 5.3 Prime cost per 1M tokens?
GLM 5.3 Prime costs $2.80 per 1M input tokens and $8.80 per 1M output tokens on the Z-ai API, with a 1M-token context window.
How much does DeepSeek V4 Flash Latest cost per 1M tokens?
DeepSeek V4 Flash Latest costs $0.01 per 1M input tokens and $1.28 per 1M output tokens on the ~deepseek API, with a 1.0M-token context window.
What does a typical request cost on GLM 5.3 Prime vs DeepSeek V4 Flash Latest?
For a typical request with 2,000 input and 500 output tokens: GLM 5.3 Prime costs $0.01, DeepSeek V4 Flash Latest costs $0.0007. At 1,000 requests/day for a month that is $300 for GLM 5.3 Prime vs $19.80 for DeepSeek V4 Flash Latest.
Estimate your own workload with the per-model calculators (GLM 5.3 Prime, DeepSeek V4 Flash Latest), browse all current prices on the live model pricing dashboard, or run these models head-to-head on a real prompt (free account required). Prices may differ from provider list prices for batch or tiered usage.
Pricing data via the OpenRouter models API.