GLM 5.3 Prime vs Space Bunny Alpha

Price, context window & benchmark comparison

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GLM 5.3 Prime

Z.ai (Zhipu)
$2.80 / $8.80
Input / Output · per 1M tokens
VS
S

Space Bunny Alpha

Stealth
Free / Free
Input / Output · per 1M tokens
Compare different models
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S
Verdict: Space Bunny Alpha is 4300000000.0× cheaper than GLM 5.3 Prime on a typical 3:1 input/output mix.
GLM 5.3 PrimeSpace Bunny Alpha
Input price / 1M$2.80Free
Output price / 1M$8.80Free
Blended price (3:1)$4.30Free
Cached input / 1M$0.56
Context window1M1M
Max output131K524K
Intelligence index
Coding index
Providers1
Best provider uptime (30m)100.0%
Vision inputNoYes
ReasoningYesYes
Tool callingYesYes
Released2026-09-232026-09-23
Retirement

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FAQ

Which is cheaper, GLM 5.3 Prime or Space Bunny Alpha?

Space Bunny Alpha is 4300000000.0× cheaper than GLM 5.3 Prime on a typical 3:1 input/output mix.

GLM 5.3 Prime vs Space Bunny Alpha: which has a bigger context window?

GLM 5.3 Prime: 1,000,000 tokens. Space Bunny Alpha: 1,000,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GLM 5.3 Prime ≈ $10,000, Space Bunny Alpha ≈ $0.

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