Kimi K3.1 Pro vs GLM-5.3

Moonshot AI's Kimi K3.1 Pro and Zhipu AI's GLM-5.3 compared on specs, pricing, and capabilities — as configured in AI Crucible ensembles.

GLM-5.3 input tokens are 1.4x cheaper than Kimi K3.1 Pro ($1.68 vs $2.40 per 1M tokens).
GLM-5.3 output tokens are 2.3x cheaper than Kimi K3.1 Pro ($5.28 vs $12.00 per 1M tokens).
Kimi K3.1 Pro offers the larger context window: 1.048576M tokens vs 1M tokens for GLM-5.3.
Kimi K3.1 Pro accepts image inputs; GLM-5.3 is text-only in AI Crucible.

Specification	Kimi K3.1 Pro	GLM-5.3
Provider	Moonshot AI	Zhipu AI
API model ID	kimi-k3.1-pro	zai-org/GLM-5.3
Description	Moonshot AI's most capable flagship, a 3T-parameter model for coding, agents, and deep reasoning, with vision and 1M context.	Z.AI's frontier open-weight model for coding and agentic work, with always-on reasoning and 1M context.
Context window	1.048576M tokens	1M tokens
Max output tokens	8,192	131,072
Input cost ($/1M tokens)	$2.40	$1.68
Output cost ($/1M tokens)	$12.00	$5.28
Cache read cost ($/1M tokens)	$0.24	$0.31
Latency	high	medium
Reasoning model	Yes	Yes
Vision (image input)	Yes	No
Tool use	Yes	Yes