GLM 5.2

zai/glm-5.2

A chat model with a 1M-token context window, at $0.84 per million input tokens and $2.6775 per million output tokens.

Details

Maker: zai
Kind: Chat
Context window: 1,000,000 tokens
Max output: 128,000 tokens
Input: $0.84 per million tokens
Cached input: $0.168 per million tokens, 80% off
Cache write: Same as input
Output: $2.6775 per million tokens
Capabilities: Reasoning, tool use
Takes: Text
Returns: Text
Zero data retention: Not on every provider
No training on requests: Not on every provider
Released: 2026-06-16
Newer model: zai/glm-5.3-flashxReleased later by the same maker, costs no more, and lists the same capabilities. Compare the two

Description

GLM-5.2 delivers powerful coding capabilities, usable 1M-context support, and continued strengths in long-horizon tasks.

Call it

curl

curl https://phantom.codes/v1/chat/completions \
  -H "Authorization: Bearer $PHANTOM_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "zai/glm-5.2",
    "messages": [
      {"role": "user", "content": "Hello"}
    ]
  }'

Set PHANTOM_KEY to your key. Any OpenAI client works with the base URL https://phantom.codes/v1.

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