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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 5.1 is Z.ai's foundation model with a 200K-token context window for extended document processing and multi-turn reasoning.

OpenAI's frontier model for complex professional workloads. 1M token context, text + image input, native computer use.

I/O price /1M

$1.40/$4.40

$5.00/$30.00

Input /1M

$1.40

$5.00

Output /1M

$4.40

$30.00

Cached in /1M

$0.26

$0.5

Context

202K

Δ input since launch

42.9%

—

Δ output since launch

42.9%

—

Released

Apr 2026

Status

—

Provider

Z Z.ai

OpenAI