Nano Banana 2.1 vs GLM 5.3 FlashX Legal
Price, context window & benchmark comparison
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Verdict: GLM 5.3 FlashX Legal is 5.1× cheaper than Nano Banana 2.1 on a typical 3:1 input/output mix. GLM 5.3 FlashX Legal has the larger context window (1M vs 66K).
| Nano Banana 2.1 | GLM 5.3 FlashX Legal | |
|---|---|---|
| Input price / 1M | $1.50 | $0.37 |
| Output price / 1M | $7.50 | $1.25 |
| Blended price (3:1) | $3.00 | $0.59 |
| Cached input / 1M | — | $0.075 |
| Context window | 66K | 1M |
| Max output | 59K | 131K |
| Intelligence index | — | — |
| Coding index | — | — |
| Providers | 1 | 1 |
| Best provider uptime (30m) | 100.0% | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-10-06 | 2026-11-02 |
| Retirement | — | — |
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FAQ
Which is cheaper, Nano Banana 2.1 or GLM 5.3 FlashX Legal?
GLM 5.3 FlashX Legal is 5.1× cheaper than Nano Banana 2.1 on a typical 3:1 input/output mix.
Nano Banana 2.1 vs GLM 5.3 FlashX Legal: which has a bigger context window?
Nano Banana 2.1: 65,536 tokens. GLM 5.3 FlashX Legal: 1,048,576 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Nano Banana 2.1 ≈ $6,750, GLM 5.3 FlashX Legal ≈ $1,365.
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