Meta: Muse Spark Open vs Z.ai: GLM 5.3 FlashX
meta-llama/muse-spark-open · z-ai/glm-5.3-flashx
As of November 4, 2026, Z.ai: GLM 5.3 FlashX is the cheaper API on UberLLM: $0.1110 per million input tokens and $0.3750 per million output, versus $0.3750 / $1.27 for Meta: Muse Spark Open, about 71% less when output is 3 tokens for every input token. These are the best prices on the market right now. Both work with one OpenAI-compatible key and UberLLM adds no fee. Choose Z.ai: GLM 5.3 FlashX to cut cost; choose Meta: Muse Spark Open when its capabilities fit your task better.
Meta: Muse Spark Open vs Z.ai: GLM 5.3 FlashX, side by side
| Spec | Meta: Muse Spark Open | Z.ai: GLM 5.3 FlashX |
|---|---|---|
| Price · input / 1M | $0.3750 | $0.1110 |
| Price · output / 1M | $1.27 | $0.3750 |
| Context length | 1,048,576 | 1,048,576 |
| Max output tokens | 943,718 | 131,072 |
| Input modalities | text, image, video, audio, file | text, image, video |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Vision (image input) | Yes | Yes |
| Reasoning | Yes | Yes |
| % off list | 70% off | 70% off |
Best prices on UberLLM right now. No UberLLM fee on requests; adding credit by card costs 5.5% + $0.50. Updated November 4, 2026.
Meta: Muse Spark Open vs Z.ai: GLM 5.3 FlashX — FAQ
Is Meta: Muse Spark Open or Z.ai: GLM 5.3 FlashX cheaper?
Z.ai: GLM 5.3 FlashX is cheaper on a blended token mix, by about 71%. A request costs what its provider charged, UberLLM adds no fee, and every request is listed with its cost in Activity.
What's the price difference between Meta: Muse Spark Open and Z.ai: GLM 5.3 FlashX?
Meta: Muse Spark Open: $0.3750 in / $1.27 out per 1M tokens. Z.ai: GLM 5.3 FlashX: $0.1110 in / $0.3750 out per 1M tokens. That's roughly a 71% blended difference. Prices are live; UberLLM adds no fee.
Can I use both Meta: Muse Spark Open and Z.ai: GLM 5.3 FlashX with one API?
Yes. Both are served through a single OpenAI-compatible endpoint — set the base URL to https://api.uberllm.dev/v1 and your UberLLM key, then switch between them by changing the model id. Anthropic SDKs work via https://api.uberllm.dev/v1/messages.