Gemini 3.8 Flash Cyber vs GLM-5.3 Flash: Specs & Benchmark Comparison

Gemini 3.8 Flash Cyber is developed by Google, while GLM-5.3 Flash comes from Zhipu AI. GLM-5.3 Flash was released in August 2026, and Gemini 3.8 Flash Cyber followed a month later in September 2026. GLM-5.3 Flash has a published size of about 320 billion parameters; Google has not disclosed the parameter count of Gemini 3.8 Flash Cyber.

We have 4 benchmark results for Gemini 3.8 Flash Cyber and 16 benchmark results for GLM-5.3 Flash, but they were measured on different benchmarks, so there is no like-for-like scoreboard.

GLM-5.3 Flash is available through an API at $0.15 per million input tokens with a 1M-token context window. We do not track a hosted API for Gemini 3.8 Flash Cyber, so pricing and context cannot be compared directly.

CharacteristicGemini 3.8 Flash CyberGLM-5.3 Flash
CompanyGoogleZhipu AI
Release DateSeptember 2, 2026August 26, 2026
Parameters—320B
MultimodalNoYes
Context (input)—1.0M
Context (output)—131K
Input Price / 1M—$0.15
Output Price / 1M—$0.50
Average Score74.6%64.1%

Verdict

Both models show equal results — the choice depends on your specific use case.

Overall Performance

Both models show comparable average scores: Gemini 3.8 Flash Cyber — 0.7, GLM-5.3 Flash — 0.6.

Recency

Both models were released around the same time: 9/2/2026 and 8/26/2026.

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Frequently Asked Questions

Which is better for coding — Gemini 3.8 Flash Cyber or GLM-5.3 Flash?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Gemini 3.8 Flash Cyber or GLM-5.3 Flash?
API pricing data is available on the individual model pages.
Which has a larger context window — Gemini 3.8 Flash Cyber or GLM-5.3 Flash?
Context window data is available on the individual model pages.

The Gemini 3.8 Flash Cyber and GLM-5.3 Flash comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Gemini 3.8 Flash Cyber or GLM-5.3 Flash page. See also the complete list of AI model comparisons.