LLM Comparison

Gemini 3.5 Flash-Lite vs GLM 5.1

Side-by-side specs, pricing & capabilities · Updated August 2026

Price vs Intelligence

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2/6 models

Same tier:

	Gemini 3.5 Flash-Lite	GLM 5.1
Organization	Google	Z.ai
OpenTools Score	13 9.0	76 36.9
Family	Gemini	GLM
Status	Current	Current
Release Date	Jul 2026	Apr 2026
Context Window	1.0M tokens	203K tokens
Input Price	$0.30/M tokens	$0.95/M tokens
Output Price	$2.50/M tokens	$3.15/M tokens
Pricing Notes	DeepMind model page lists $0.30 input and $2.50 output per 1M tokens with no caching in the performance table. The ai.google.dev API docs were attempted through ScrapingBee and returned HTTP 400, so exact billing details beyond the official DeepMind price table were not used.	Cache read: $0.4750/M tokens
Capabilities	textvisionaudio-inputvideo-inputpdf-inputreasoningcodingtool-usesearch-groundingcomputer-usestructured-output	textcode
Max Output	64K tokens	66K tokens
API Identifier	`gemini-3.5-flash-lite`	`z-ai/glm-5.1`
Benchmarks
Artificial Analysis Intelligence Index	36artificial-analysis	—
SWE-Bench Pro	54.2google-deepmind	—
Terminal-Bench 2.1	54google-deepmind	—
GDPVal-AA v2	1140google-deepmind	—
	View Gemini 3.5 Flash-Lite	View GLM 5.1

Cost Calculator

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Input tokens / month

Output tokens / month

Model	Input	Output	Total / mo	vs Best
Gemini 3.5 Flash-LiteCheapest	$0.30	$1.25	$1.55	—
GLM 5.1	$0.95	$1.58	$2.53	+63%

Google

Gemini 3.5 Flash-Lite

Gemini 3.5 Flash-Lite is Google DeepMind general availability low-latency model for high-volume agentic systems, coding, document parsing, translation, and structured automation. Official DeepMind evidence lists 1M input tokens, 64k output tokens, text, image, video, audio, and PDF inputs, text output, tool use, Gemini API availability, and $0.30 input / $2.50 output pricing per million tokens.

Z.ai

GLM 5.1

GLM 5.1 is a large language model from Z.ai. Supports up to 202,752 token context window. Available from $0.95/M input tokens.