DeepSeek V4 Flash vs GLM-5.2
How DeepSeek's DeepSeek V4 Flash and Z.AI (GLM)'s GLM-5.2 differ on paper, from the specs each provider publishes.
Compare them on your promptBoth answer side by side, free with your own API keys.
Key differences
- Both models accept 1M tokens of context.
- DeepSeek V4 Flash can write longer replies, up to 384K output tokens against 128K.
Side by side
| Spec | DeepSeek V4 Flash | GLM-5.2 |
|---|---|---|
| Provider | DeepSeek | Z.AI (GLM) |
| Released | July 2026 | July 2026 |
| Context window | 1M tokens | 1M tokens |
| Max output | 384K tokens | 128K tokens |
| Reasoning model | Yes | Yes |
| Price per 1M tokens (in / out) | See provider | See provider |
| Capabilities | Reasoning, Coding, Tool calling, Structured output, Extended thinking, Streaming | Reasoning, Coding, Tool calling, Structured output, Extended thinking, Streaming |
Specs as published by each provider. Benchmarks and output quality aren't covered here; the best test is your own prompts.
Specs only go so far. Ask both.
Send one message and get DeepSeek V4 Flash and GLM-5.2's answers side by side, with response time, tokens and cost for each. You'll need DeepSeek and Z.AI (GLM) keys.
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