Gemini 3 Flash vs GLM-5.3: Specs & Benchmark Comparison
| Characteristic | Gemini 3 Flash | GLM-5.3 |
|---|---|---|
| Company | Zhipu AI | |
| Release Date | December 16, 2025 | August 14, 2026 |
| Parameters | — | 753B |
| Multimodal | Yes | No |
| Context (input) | 1.0M | 1.0M |
| Context (output) | 66K | 131K |
| Input Price / 1M | $0.50 | $1.40 |
| Output Price / 1M | $3.00 | $4.40 |
| Average Score | 0.9 | 0.8 |
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-5.3 — 0.8.
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 1M tokens.
Recency
GLM-5.3 is newer: released 8/14/2026 vs 12/16/2025.
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Frequently Asked Questions
Which is better for coding — Gemini 3 Flash or GLM-5.3?
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-5.3?
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-5.3?
Gemini 3 Flash supports a larger context: 1,048,576 tokens vs 1,000,000.
The Gemini 3 Flash and GLM-5.3 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-5.3 page. See also the complete list of AI model comparisons.