Compare two models
Select any two models. Input, output, cached, and context rarely move together — the cheaper model on one line isn't always the cheaper one on the next.
Description
GLM 4.5 is Z.ai's foundation model released in mid-2025 with a 131K-token context window for processing documents and multi-turn conversations.
OpenAI's frontier model for complex professional workloads. 1M token context, text + image input, native computer use.
I/O price /1M
$0.6/$2.20
$5.00/$30.00
Input /1M
$0.6
$5.00
Output /1M
$2.20
$30.00
Cached in /1M
$0.11
$0.5
Context
131K
1M
Δ input since launch
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—
Δ output since launch
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Released
Jul 2025
Apr 2026
Status
—
—
Provider
Z
Z.ai
OpenAI