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Gemini 3.5 Flash-Lite vs GLM-5.2

Detailed pricing comparison and cost analysis.

Updated September 2026

Cost Simulator

Gemini 3.5 Flash-Lite Cost
$0.80
GLM-5.2 Cost
$2.28
Gemini 3.5 Flash-Lite is 65% cheaper
FeatureGemini 3.5 Flash-LiteGLM-5.2
ProviderGoogleZhipu AI
Input Price (1M)$0.30$1.40
Output Price (1M)$2.50$4.40
Context Window1,000,0001,000,000

Verdict

Gemini 3.5 Flash-Lite costs $0.30 per 1M input tokens and $2.50 per 1M output tokens. GLM-5.2 costs $1.40 per 1M input tokens and $4.40 per 1M output tokens. Gemini 3.5 Flash-Lite is 79% cheaper on input tokens than GLM-5.2. For output tokens, Gemini 3.5 Flash-Lite is the more affordable option at $2.50/1M vs $4.40.

On context window, Gemini 3.5 Flash-Lite supports 1,000,000 tokens — meaning it can fit more conversation history, documents, or code in a single request. This matters for RAG pipelines, long document analysis, and agentic workflows where context builds up over many turns.

When to choose Gemini 3.5 Flash-Lite

  • ✓ You need the lowest input token cost ($ 0.30/1M)
  • ✓ Your workload is output-heavy — Gemini 3.5 Flash-Lite generates text cheaper
  • ✓ You are already integrated with Google

When to choose GLM-5.2

  • ✓ You are already integrated with Zhipu AI

Use the calculator above to simulate your specific workload and find the exact break-even point. For most applications, the cheapest model is the one that minimises your total monthly bill given your input-to-output token ratio.

Frequently Asked Questions

Is Gemini 3.5 Flash-Lite cheaper than GLM-5.2?

Gemini 3.5 Flash-Lite is cheaper on input tokens at $0.30/1M vs $1.40/1M for GLM-5.2 — a 79% saving.

What is the context window of Gemini 3.5 Flash-Lite vs GLM-5.2?

Gemini 3.5 Flash-Lite has a 1,000,000-token context window. GLM-5.2 has a 1,000,000-token context window. Gemini 3.5 Flash-Lite supports the larger context, suitable for longer documents and agentic workflows.

Which model is better: Gemini 3.5 Flash-Lite or GLM-5.2?

The best choice depends on your use case. For cost efficiency on input tokens, Gemini 3.5 Flash-Lite is the cheaper option. For maximum context length, Gemini 3.5 Flash-Lite supports 1,000,000 tokens. Use the comparison table above to find the right fit for your workload.