GLM 5.3 FlashX Legal vs Muse Spark 1.3

Price, context window & benchmark comparison

Z.ai (Zhipu)

GLM 5.3 FlashX Legal

Z.ai (Zhipu)
$0.37 / $1.25
Input / Output · per 1M tokens
VS
Meta

Muse Spark 1.3

Meta
$1.25 / $4.25
Input / Output · per 1M tokens
Compare different models
Z.ai (Zhipu)
Meta
Verdict: GLM 5.3 FlashX Legal is 3.4× cheaper than Muse Spark 1.3 on a typical 3:1 input/output mix.
GLM 5.3 FlashX LegalMuse Spark 1.3
Input price / 1M$0.37$1.25
Output price / 1M$1.25$4.25
Blended price (3:1)$0.59$2.00
Cached input / 1M$0.075$0.15
Context window1M1M
Max output131K944K
Intelligence index—36.6
Coding index—75.8
Providers1—
Best provider uptime (30m)100.0%—
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-11-022026-09-02
Retirement——

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FAQ

Which is cheaper, GLM 5.3 FlashX Legal or Muse Spark 1.3?

GLM 5.3 FlashX Legal is 3.4× cheaper than Muse Spark 1.3 on a typical 3:1 input/output mix.

GLM 5.3 FlashX Legal vs Muse Spark 1.3: which has a bigger context window?

GLM 5.3 FlashX Legal: 1,048,576 tokens. Muse Spark 1.3: 1,048,576 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GLM 5.3 FlashX Legal ≈ $1,365, Muse Spark 1.3 ≈ $4,625.

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