Model Comparison
GPT-5.1 Codex (High)
vs. Muse Spark
Comparing 2 AI models · 0 benchmarks · OpenAI, Meta
Lowest Price
GPT-5.1 Codex (High)
$1.25/1M input price
Best for Coding
Muse Spark
58.6 coding index
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
GPT-5.1 Codex (High)
OpenAI
TTFT
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Time
—
tok/s
—
Tokens
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Cost
—
Muse Spark
Meta
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Which answer was more useful?
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Full Comparison
| Metric | Op GPT-5.1 Codex (High) | Me Muse Spark |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $1.25/1M | — |
| Output Cost | $10.00/1M | — |
| Blended (3:1) | $3.44/1M | — |
| Specifications | ||
| Organization | OpenAI | Meta |
| Release Date | Nov 13, 2025 | Apr 8, 2026 |
| Performance & Speed | ||
| Throughput | 127.0 tok/s | — |
| TTFT | 8180ms | — |
| Latency | 8180ms | — |
| Composite Indices | ||
| Coding | — | 58.6 |
Key Takeaways
GPT-5.1 Codex (High) offers the best value at $1.25/1M,making it ideal for high-volume applications and cost-conscious projects.
Muse Spark reaches a 58.6 coding index,making it the top choice for software development and code generation tasks.
All models support context windows of ∞+ tokens,suitable for processing lengthy documents and maintaining extended conversations.
When to Choose Each Model
GPT-5.1 Codex (High)
- Cost-sensitive applications
- High-volume processing
Muse Spark
- Code generation
- Software development
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