GPT-6 Astra vs Muse Spark 1.3: Specs & Benchmark Comparison
| Characteristic | GPT-6 Astra | Muse Spark 1.3 |
|---|---|---|
| Company | OpenAI | Meta |
| Release Date | September 3, 2026 | September 2, 2026 |
| Parameters | — | — |
| Multimodal | Yes | Yes |
| Context (input) | 1.1M | 1.0M |
| Context (output) | 128K | 944K |
| Input Price / 1M | $10.00 | $0.10 |
| Output Price / 1M | $50.00 | $0.20 |
| Average Score | 0.7 | 0.7 |
| Benchmarks | ||
| AutomationBench | 0.4 | 0.5 |
| OSWorld 2.0 | 0.7 | 0.7 |
| DeepSWE 1.1 | 0.7 | 0.8 |
Visual Benchmark Comparison
GPT-6 Astra
Muse Spark 1.3
AutomationBench0.4 vs 0.5
0.4
0.5
OSWorld 2.00.7 vs 0.7
0.7
0.7
DeepSWE 1.10.7 vs 0.8
0.7
0.8
Verdict
Both models show equal results — the choice depends on your specific use case.
Overall Performance
Both models show comparable average scores: GPT-6 Astra — 0.7, Muse Spark 1.3 — 0.7.
API Cost
Muse Spark 1.3 is 200.0x cheaper: input $0.10/1M vs $10.00/1M tokens.
Context Window
GPT-6 Astra supports a larger context: 1M vs 1M tokens.
Recency
Both models were released around the same time: 9/3/2026 and 9/2/2026.
More About These Models
Related Comparisons
Frequently Asked Questions
Which is better for coding — GPT-6 Astra or Muse Spark 1.3?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — GPT-6 Astra or Muse Spark 1.3?
Muse Spark 1.3 is cheaper for input: $0.10 per 1M tokens vs $10.00.
Which has a larger context window — GPT-6 Astra or Muse Spark 1.3?
GPT-6 Astra supports a larger context: 1,050,000 tokens vs 1,048,576.
The GPT-6 Astra and Muse Spark 1.3 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the GPT-6 Astra or Muse Spark 1.3 page. See also the complete list of AI model comparisons.