AI model comparison
Muse Spark Open vs GLM 5.3
Side by side comparison of Muse Spark Open and GLM 5.3 on pricing, benchmark scores, context window, and more.
Muse Spark Open is a coding-optimized open-weight model.
- Input / 1M
- $1.25
- Output / 1M
- $4.25
- Context
- 1.05M
GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks.
- Input / 1M
- $0.08
- Output / 1M
- $3.60
- Context
- 1.05M
Comparing image generators? Compare image models
At a glance
Quick verdict
How the two models stack up on the things people ask about most.
Lower price
GLM 5.3
2.4x cheaper for a typical chat
Higher intelligence score
GLM 5.3
31.7 vs 24.7 on Artificial Analysis
Larger context window
Tie
1.05M vs 1.05M tokens
Newer release
Muse Spark Open
Released October 15, 2026
Benchmarks
Benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
Coding index
Agentic index
Pricing
Muse Spark Open vs GLM 5.3 API pricing
Per-token API rates. Cheaper option highlighted.
| Metric | ||
|---|---|---|
| Input tokensPer 1M tokens | $1.25 | $0.08 |
| Output tokensPer 1M tokens | $4.25 | $3.60 |
| Cached input (read)Per 1M tokens | $0.15 | $0.08 |
| Cache writePer 1M tokens | Not available | Not available |
What it costs in practice
Estimated cost per 1,000 requests at standard rates. Coding and long-document figures also show the cost when the input is already cached.
Chat message
2K in, 500 out
Coding task
30K in, 4K out
Long document summary
150K in, 2K out
Specs
Context window and capabilities
How much each model can read, how much it can write, and what it accepts as input.
| Metric | ||
|---|---|---|
| Context window | 1.05M tokens | 1.05M tokens |
| Max output | 944K tokens | 944K tokens |
| Input types | Audio, File, Image, Text, Video | Text |
| Output types | Text | Text |
| Reasoning effort levels | Extra high, High, Medium, Low | Max, High, Low |
| Default reasoning effort | Medium | Max |
| Release date | October 15, 2026 | August 18, 2026 |
Features
Supported features
API features available for each model.
| Metric | ||
|---|---|---|
| Tool calling | Supported | Supported |
| Structured outputs | Supported | Supported |
| JSON mode | Supported | Supported |
| Reasoning | Supported | Supported |
| Temperature | Supported | Supported |
| Stop sequences | Supported | Supported |
| Deterministic seed | Supported | Supported |
| Verbosity control | Not supported | Not supported |
Keep exploring
More on these models
Other head-to-heads, the full model page, and the alternatives list for each model.
- Muse Spark Open vs Muse Spark 1.3
- Muse Spark Open vs Gemini 3.8 Flash
- Muse Spark Open vs DeepSeek V4.1 Flash 1017
- Muse Spark Open vs Step 5 Preview
- Muse Spark Open vs GPT-6 Luna
- Muse Spark Open vs Mistral Large 4
- Muse Spark Open vs DeepSeek V4 Pro 0813
- Muse Spark Open vs Qwen3.8 27B
- Muse Spark Open vs Kimi K3
- GLM 5.3 vs DeepSeek V4.1 Flash 1017
- GLM 5.3 vs GLM 5.3 Flash
- GLM 5.3 vs DeepSeek V4.1 Flash
- GLM 5.3 vs Claude Opus 5.5
- GLM 5.3 vs Hy4 preview
- GLM 5.3 vs GPT-6 Luna
- GLM 5.3 vs GPT-6.1 Sol
- GLM 5.3 vs Step 5 Preview
- GLM 5.3 vs MiniMax M3.1 Flash
- GLM 5.3 vs GPT-5.6 Luna
- GLM 5.3 vs DeepSeek V4 Flash 0731
- GLM 5.3 vs Muse Spark 1.3
- GLM 5.3 vs Claude Haiku 5.5
- GLM 5.3 vs Grok 4.7
- GLM 5.3 vs Qwen3.8 Max (0902)
- GLM 5.3 vs Gemini 3.8 Flash
- GLM 5.3 vs MiMo-V2.6-Pro
- GLM 5.3 vs Solar Pro 4
- GLM 5.3 vs Mistral Large 4
- GLM 5.3 vs DeepSeek V4 Pro 0813
- GLM 5.3 vs GLM 5.2
- GLM 5.3 vs Gemini 3 Flash Preview
- GLM 5.3 vs DeepSeek V4 Pro 0423
- GLM 5.3 vs Gemini 3.7 Flash
- GLM 5.3 vs Gemini 2.5 Flash
- GLM 5.3 vs Claude Haiku 4.5
- GLM 5.3 vs GLM 5.3 FlashX
- GLM 5.3 vs Grok 4.6
- GLM 5.3 vs MiMo-V2.5
- GLM 5.3 vs MiMo-V2.5-Pro
Our take
GLM 5.3 is 2.4x cheaper for a typical chat. GLM 5.3 scores higher on the Artificial Analysis Intelligence Index (31.7 vs 24.7). The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.
FAQ
Frequently asked questions
Is Muse Spark Open or GLM 5.3 cheaper?
GLM 5.3 is cheaper for a typical chat (2K input tokens and 500 output tokens). GLM 5.3 costs $0.08 per 1M input tokens and $3.60 per 1M output tokens, while Muse Spark Open costs $1.25 per 1M input tokens and $4.25 per 1M output tokens.
Which has a bigger context window, Muse Spark Open or GLM 5.3?
Muse Spark Open supports up to 1.05M tokens of context, compared with 1.05M for GLM 5.3.
Is Muse Spark Open smarter than GLM 5.3?
On the Artificial Analysis Intelligence Index, Muse Spark Open scores 24.7 and GLM 5.3 scores 31.7, putting GLM 5.3 ahead. Benchmarks don't capture everything, so the best test is running your own prompts through both.
Can I use Muse Spark Open and GLM 5.3 at the same time?
Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see Muse Spark Open and GLM 5.3 answer side by side and keep the better response.
Why choose? Ask both.
Send one prompt to Muse Spark Open and GLM 5.3 at the same time. Compare the answers side by side and keep the best one.