Xentir GPT-5.2 vs Muse Spark
GPT-5.2 · OpenAI, released 2025-12-11
Muse Spark · Meta AI, released 2026-04-08
“Epoch AI, 'AI Benchmarking Hub'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks' [online resource].” · epoch.ai/benchmarks · Licensed CC BY 4.0 · data last verified 2026-09-21 · Methodology · Data Sources
GPT-5.2 leads on more of the 5 benchmarks where both are measured — GPT-5.2 on 5. The remaining 4 of 9 tracked benchmarks cannot be compared: 3 have a result for only one of the two models, 1 for neither. Nothing on this page is estimated to fill those in.
Head-to-head
Measured on 5 of 9 tracked benchmarks for both models — GPT-5.2 leads on 5.
| Benchmark | GPT-5.2 | Muse Spark | Leads |
|---|---|---|---|
| Epoch Capabilities Index (ECI) | 153.5 | 152.1 | GPT-5.2 |
| SWE-bench Verified | 0.738 (high) | Not measured | Comparison unavailable — Muse Spark has no published result |
| GPQA Diamond | 0.914 (xhigh) | 0.898 | GPT-5.2 |
| MATH Level 5 | Not measured | Not measured | Not measured on both |
| OTIS Mock AIME 2024-2025 | 0.961 (high) | 0.889 | GPT-5.2 |
| FrontierMath | 0.407 (xhigh) | 0.390 | GPT-5.2 |
| FrontierMath Tier 4 | 0.188 (xhigh) | 0.146 | GPT-5.2 |
| SimpleQA Verified | 0.371 (xhigh) | Not measured | Comparison unavailable — Muse Spark has no published result |
| Chess Puzzles | 0.490 (xhigh) | Not measured | Comparison unavailable — Muse Spark has no published result |
What remains uncertain
- Muse Spark has no published result on Chess Puzzles, SWE-bench Verified, SimpleQA Verified.
- 1 tracked benchmark has no published result for either model.
A missing result means Xentir has not found one published by the source it cites, not that the model performs badly. See Data Sources.
Reference price
| Per 1M tokens | GPT-5.2 | Muse Spark |
|---|---|---|
| Output | $14.00 | — |
List price as published by the vendor. Xentir does not verify negotiated or enterprise rates, and price is not a measure of capability — see Data Sources.