Meta: Muse Spark Open vs GLM 5.3
meta-llama/muse-spark-open · z-ai/glm-5.3
As of November 3, 2026, GLM 5.3 is the cheaper API on UberLLM: $0.0003 per million input tokens and $0.0145 per million output, versus $0.3750 / $1.27 for Meta: Muse Spark Open, about 99% 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 GLM 5.3 to cut cost; choose Meta: Muse Spark Open when context size wins. Meta: Muse Spark Open carries the larger context window (1,048,576 vs 1,000,000 tokens), which can matter for long-document work.
Meta: Muse Spark Open vs GLM 5.3, side by side
| Spec | Meta: Muse Spark Open | GLM 5.3 |
|---|---|---|
| Price · input / 1M | $0.3750 | $0.0003 |
| Price · output / 1M | $1.27 | $0.0145 |
| Context length | 1,048,576 | 1,000,000 |
| Max output tokens | 943,718 | 131,072 |
| Input modalities | text, image, video, audio, file | text |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Vision (image input) | Yes | — |
| Reasoning | Yes | Yes |
| % off list | 70% off | 99.6% off |
| First token, median (7 days) | — | 3.8 s (526 requests) |
Best prices on UberLLM right now. No UberLLM fee on requests; adding credit by card costs 5.5% + $0.50. Updated November 3, 2026. A price more than 70% below list is what buyers were billed, not an error. Why so cheap?
Meta: Muse Spark Open vs GLM 5.3 — FAQ
Is Meta: Muse Spark Open or GLM 5.3 cheaper?
GLM 5.3 is cheaper on a blended token mix, by about 99%. 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 GLM 5.3?
Meta: Muse Spark Open: $0.3750 in / $1.27 out per 1M tokens. GLM 5.3: $0.0003 in / $0.0145 out per 1M tokens. That's roughly a 99% blended difference. Prices are live; UberLLM adds no fee.
Can I use both Meta: Muse Spark Open and GLM 5.3 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.