GLM 5.2 vs DeepSeek V4 Pro

GLM 5.2 vs DeepSeek V4 Pro at a glance

GLM 5.2 from Z.ai and DeepSeek V4 Pro from DeepSeek are both in the Text Generation category, available through the EmpirioLabs API.

Key differences

• GLM 5.2 is the newer release (Jun 16, 2026); DeepSeek V4 Pro was released on Apr 24, 2026.
• Both models have a context window of 1M tokens.
• DeepSeek V4 Pro returns up to 393,216 output tokens per response, GLM 5.2 up to 131,072.
• Capabilities listed only for GLM 5.2: web search.
• GLM 5.2 lists the lower rate for Input (per 1M prompt tokens).
• DeepSeek V4 Pro lists the lower rate for Output (per 1M generated tokens).

GLM 5.2 vs DeepSeek V4 Pro: specs

GLM 5.2 vs DeepSeek V4 Pro: API pricing

Live rates from the EmpirioLabs catalog for both models. Each rate card always matches what the API charges.

GLM 5.2 vs DeepSeek V4 Pro: API parameters

Request parameters each model lists on EmpirioLabs, with the allowed values or range where one applies. A dash marks a parameter the model does not list.

How to call GLM 5.2 and DeepSeek V4 Pro

GLM 5.2 serves the OpenAI-compatible Chat Completions API. Point any OpenAI SDK at https://api.empiriolabs.ai/v1 with your EmpirioLabs API key and use the model id glm-5-2. Both models are called through the same endpoint. Set model to glm-5-2 or deepseek-v4-pro. Get an API key from the EmpirioLabs dashboard.

curl https://api.empiriolabs.ai/v1/chat/completions \
  -H "Authorization: Bearer $EMPIRIOLABS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "glm-5-2",
    "messages": [
      {"role": "user", "content": "Write a haiku about the ocean."}
    ]
  }'

GLM 5.2 vs DeepSeek V4 Pro: tests and guides

Prompt tests and comparison runs that cover both models.

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GLM 5.2 vs DeepSeek V4 Pro: common questions

What is the difference between GLM 5.2 and DeepSeek V4 Pro?

GLM 5.2 is the newer release (Jun 16, 2026); DeepSeek V4 Pro was released on Apr 24, 2026. Both models have a context window of 1M tokens. DeepSeek V4 Pro returns up to 393,216 output tokens per response, GLM 5.2 up to 131,072. The specs, rate cards, and parameters on this page come from the live EmpirioLabs catalog.

Which is newer, GLM 5.2 or DeepSeek V4 Pro?

GLM 5.2 is the newer release (Jun 16, 2026); DeepSeek V4 Pro was released on Apr 24, 2026.

Which has the lower rate, GLM 5.2 or DeepSeek V4 Pro?

GLM 5.2 lists the lower rate for Input (per 1M prompt tokens). DeepSeek V4 Pro lists the lower rate for Output (per 1M generated tokens). Both live rate cards are on this page and always match what the API charges.

Can I switch between GLM 5.2 and DeepSeek V4 Pro without rebuilding my integration?

Yes. Both models use POST /v1/chat/completions with the same EmpirioLabs API key, so most integrations switch by changing the model value. Check the parameters table on this page first if you rely on a model-specific parameter.

Can I try GLM 5.2 and DeepSeek V4 Pro in the browser before integrating?

Yes. Open each model in the EmpirioLabs playground and run the same prompt on both, with the parameters the API exposes.