Skip to content

grok-4-1-fast-reasoning vs GLM-4.5

grok-4-1-fast-reasoning is cheaper on output tokens, while grok-4-1-fast-reasoning offers a larger context window. Choose grok-4-1-fast-reasoning or GLM-4.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Specgrok-4-1-fast-reasoningGLM-4.5
Provider302.AI302.AI
Input / 1M tokens$0.20$0.29
Output / 1M tokens$0.50$1.14
Context window2M131K
Parameters—355B
Open weightsNoYes
ReleasedNov 2025Jul 2025

FAQ

Is grok-4-1-fast-reasoning or GLM-4.5 cheaper?

grok-4-1-fast-reasoning is cheaper on output tokens ($0.50 vs $1.14 per 1M).

Which has the larger context window, grok-4-1-fast-reasoning or GLM-4.5?

grok-4-1-fast-reasoning has the larger context window (2M tokens).

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.