Compare · ModelsLive · 2 picked · head to head
GPT-6.1 Sol vs Muse Spark Open
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
GPT-6.1 Sol wins on 8/8 benchmarks
GPT-6.1 Sol wins 8 of 8 shared benchmarks. Leads in agentic · reasoning · math.
Category leads
agentic·GPT-6.1 Solreasoning·GPT-6.1 Solmath·GPT-6.1 Solknowledge·GPT-6.1 Sol
Hype vs Reality
Attention vs performance
GPT-6.1 Sol
#7 by perf·#2 by attention
Muse Spark Open
#35 by perf·no signal
Best value
Muse Spark Open
1.9x better value than GPT-6.1 Sol
GPT-6.1 Sol
12.7 pts/$
$6.00/M
Muse Spark Open
24.0 pts/$
$2.75/M
Vendor risk
Who is behind the model
OpenAI
$840.0B·Tier 1
Meta AI
$1.65T·Tier 1
Head to head
8 benchmarks · 2 models
GPT-6.1 SolMuse Spark Open
APEX-Agents
GPT-6.1 Sol leads by +26.6
APEX-Agents · evaluates AI agents on complex, multi-step tasks requiring planning, tool use, and autonomous decision-making in realistic environments.
GPT-6.1 Sol
60.0
Muse Spark Open
33.4
ARC-AGI
GPT-6.1 Sol leads by +9.5
ARC-AGI · the original Abstraction and Reasoning Corpus, testing whether AI can solve novel visual pattern recognition tasks without memorization.
GPT-6.1 Sol
98.5
Muse Spark Open
89.0
ARC-AGI-2
GPT-6.1 Sol leads by +36.7
ARC-AGI-2 · the second iteration of the Abstraction and Reasoning Corpus, testing novel pattern recognition and abstract reasoning without prior training data.
GPT-6.1 Sol
94.2
Muse Spark Open
57.5
FrontierMath-Tier-4-v2-Private
GPT-6.1 Sol leads by +68.3
GPT-6.1 Sol
100.0
Muse Spark Open
31.7
FrontierMath-Tiers-1-3-v2-Private
GPT-6.1 Sol leads by +25.1
GPT-6.1 Sol
98.6
Muse Spark Open
73.5
GPQA diamond
GPT-6.1 Sol leads by +9.5
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
GPT-6.1 Sol
97.8
Muse Spark Open
88.3
OTIS Mock AIME 2024-2025
GPT-6.1 Sol leads by +2.0
OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills.
GPT-6.1 Sol
100.0
Muse Spark Open
98.0
SimpleQA Verified
GPT-6.1 Sol leads by +17.3
SimpleQA Verified · short factual questions with verified answers, measuring factual accuracy and the tendency to hallucinate or provide incorrect information.
GPT-6.1 Sol
73.9
Muse Spark Open
56.6
Full benchmark table
| Benchmark | GPT-6.1 Sol | Muse Spark Open |
|---|---|---|
APEX-Agents APEX-Agents · evaluates AI agents on complex, multi-step tasks requiring planning, tool use, and autonomous decision-making in realistic environments. | 60.0 | 33.4 |
ARC-AGI ARC-AGI · the original Abstraction and Reasoning Corpus, testing whether AI can solve novel visual pattern recognition tasks without memorization. | 98.5 | 89.0 |
ARC-AGI-2 ARC-AGI-2 · the second iteration of the Abstraction and Reasoning Corpus, testing novel pattern recognition and abstract reasoning without prior training data. | 94.2 | 57.5 |
FrontierMath-Tier-4-v2-Private | 100.0 | 31.7 |
FrontierMath-Tiers-1-3-v2-Private | 98.6 | 73.5 |
GPQA diamond Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs. | 97.8 | 88.3 |
OTIS Mock AIME 2024-2025 OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills. | 100.0 | 98.0 |
SimpleQA Verified SimpleQA Verified · short factual questions with verified answers, measuring factual accuracy and the tendency to hallucinate or provide incorrect information. | 73.9 | 56.6 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $2.00 | $10.00 | 1.1M tokens (~525 books) | $40.00 | |
| $1.25 | $4.25 | 1.0M tokens (~524 books) | $20.00 |