GLM-5.1 vs GPT-5 mini (Fast)

01Differences

At a glance

Computed automatically from tracked data.

• GLM-5.1's output price is 67% higher than GPT-5 mini (Fast)'s ($2.15 vs $3.60 per 1M).
• GPT-5 mini (Fast) has a 2× larger context window (400,000 vs 205,000 tokens).
02Specs

Side by side

GLM-5.1GPT-5 mini (Fast)
Input / 1M$0.45$0.45
Output / 1M$2.15$3.60
Context205,000400,000
Max output205,000128,000
Providers561
Released2026-03-272025-08-07
03Prices

Common providers

ProviderGLM-5.1GPT-5 mini (Fast)
vercel$1.40 / $4.40$0.45 / $3.60
04History

Recent changes

GLM-5.1
2026-09-15Price up hyper
2026-09-14Context friendli
2026-09-14Price cut hyper
2026-09-14Added melious
2026-09-14Price up ollama-cloud
GPT-5 mini (Fast)
2026-08-17Added vercel
as of 2026-09-16
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