R1 0528 vs GLM 5.3 FlashX Legal
Price, context window & benchmark comparison
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Verdict: GLM 5.3 FlashX Legal is 35% cheaper than R1 0528 on a typical 3:1 input/output mix. GLM 5.3 FlashX Legal has the larger context window (1M vs 164K).
| R1 0528 | GLM 5.3 FlashX Legal | |
|---|---|---|
| Input price / 1M | $0.50 | $0.37 |
| Output price / 1M | $2.15 | $1.25 |
| Blended price (3:1) | $0.91 | $0.59 |
| Cached input / 1M | $0.35 | $0.075 |
| Context window | 164K | 1M |
| Max output | 33K | 131K |
| Intelligence index | — | — |
| Coding index | — | — |
| Providers | — | 1 |
| Best provider uptime (30m) | — | 100.0% |
| Vision input | No | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2025-05-28 | 2026-11-02 |
| Retirement | — | — |
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FAQ
Which is cheaper, R1 0528 or GLM 5.3 FlashX Legal?
GLM 5.3 FlashX Legal is 35% cheaper than R1 0528 on a typical 3:1 input/output mix.
R1 0528 vs GLM 5.3 FlashX Legal: which has a bigger context window?
R1 0528: 163,840 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: R1 0528 ≈ $2,075, GLM 5.3 FlashX Legal ≈ $1,365.
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