Gemini 3 Flash vs GLM-5.1: Specs & Benchmark Comparison

CharacteristicGemini 3 FlashGLM-5.1
CompanyGoogleZhipu AI
Release DateDecember 16, 2025April 7, 2026
Parameters754B
MultimodalYesNo
Context (input)1.0M200K
Context (output)66K131K
Input Price / 1M$0.50$1.40
Output Price / 1M$3.00$4.40
Average Score0.90.9
Benchmarks
GPQA0.90.9

Visual Benchmark Comparison

Gemini 3 Flash
GLM-5.1
GPQA0.9 vs 0.9
0.9
0.9

Verdict

Gemini 3 Flash leads in 2 out of 4 comparison categories.

Overall Performance

Both models show comparable average scores: Gemini 3 Flash — 0.9, GLM-5.1 — 0.9.

API Cost

Gemini 3 Flash is 1.7x cheaper: input $0.50/1M vs $1.40/1M tokens.

Context Window

Gemini 3 Flash supports a larger context: 1M vs 200K tokens.

Recency

GLM-5.1 is newer: released 4/7/2026 vs 12/16/2025.

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Frequently Asked Questions

Which is better for coding — Gemini 3 Flash or GLM-5.1?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Gemini 3 Flash or GLM-5.1?
Gemini 3 Flash is cheaper for input: $0.50 per 1M tokens vs $1.40.
Which has a larger context window — Gemini 3 Flash or GLM-5.1?
Gemini 3 Flash supports a larger context: 1,048,576 tokens vs 200,000.

The Gemini 3 Flash and GLM-5.1 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Gemini 3 Flash or GLM-5.1 page. See also the complete list of AI model comparisons.