Gemini 3.1 Flash Lite vs GLM 5.3 Prime
Price, context window & benchmark comparison
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Verdict: Gemini 3.1 Flash Lite is 7.6× cheaper than GLM 5.3 Prime on a typical 3:1 input/output mix. Gemini 3.1 Flash Lite has the larger context window (1M vs 1M).
| Gemini 3.1 Flash Lite | GLM 5.3 Prime | |
|---|---|---|
| Input price / 1M | $0.25 | $2.80 |
| Output price / 1M | $1.50 | $8.80 |
| Blended price (3:1) | $0.56 | $4.30 |
| Cached input / 1M | $0.025 | $0.56 |
| Context window | 1M | 1M |
| Max output | 66K | 131K |
| Intelligence index | — | — |
| Coding index | — | — |
| Providers | — | 1 |
| Best provider uptime (30m) | — | 100.0% |
| Vision input | Yes | No |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-05-07 | 2026-09-23 |
| Retirement | — | — |
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FAQ
Which is cheaper, Gemini 3.1 Flash Lite or GLM 5.3 Prime?
Gemini 3.1 Flash Lite is 7.6× cheaper than GLM 5.3 Prime on a typical 3:1 input/output mix.
Gemini 3.1 Flash Lite vs GLM 5.3 Prime: which has a bigger context window?
Gemini 3.1 Flash Lite: 1,048,576 tokens. GLM 5.3 Prime: 1,000,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Gemini 3.1 Flash Lite ≈ $1,250, GLM 5.3 Prime ≈ $10,000.
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