Compare · ModelsLive · 2 picked · head to head
Claude Fable 5.1 vs GPT-6 Sol
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
Claude Fable 5.1 wins on 13/16 benchmarks
Claude Fable 5.1 wins 13 of 16 shared benchmarks. Leads in agentic · reasoning · general.
Category leads
agentic·Claude Fable 5.1reasoning·Claude Fable 5.1knowledge·GPT-6 Solgeneral·Claude Fable 5.1coding·Claude Fable 5.1math·Claude Fable 5.1
Hype vs Reality
Attention vs performance
Claude Fable 5.1
#24 by perf·#11 by attention
GPT-6 Sol
#23 by perf·#5 by attention
Best value
GPT-6 Sol
5.0x better value than Claude Fable 5.1
Claude Fable 5.1
2.3 pts/$
$30.00/M
GPT-6 Sol
11.5 pts/$
$6.00/M
Vendor risk
Who is behind the model
Anthropic
$965.0B·Tier 1
OpenAI
$840.0B·Tier 1
Head to head
16 benchmarks · 2 models
Claude Fable 5.1GPT-6 Sol
APEX-Agents
Claude Fable 5.1 leads by +14.3
APEX-Agents · evaluates AI agents on complex, multi-step tasks requiring planning, tool use, and autonomous decision-making in realistic environments.
Claude Fable 5.1
68.6
GPT-6 Sol
54.3
ARC-AGI
Claude Fable 5.1 leads by +2.0
ARC-AGI · the original Abstraction and Reasoning Corpus, testing whether AI can solve novel visual pattern recognition tasks without memorization.
Claude Fable 5.1
97.5
GPT-6 Sol
95.5
ARC-AGI-2
Claude Fable 5.1 leads by +0.4
ARC-AGI-2 · the second iteration of the Abstraction and Reasoning Corpus, testing novel pattern recognition and abstract reasoning without prior training data.
Claude Fable 5.1
90.0
GPT-6 Sol
89.6
Chess Puzzles
GPT-6 Sol leads by +8.4
Chess Puzzles · tests strategic and tactical reasoning by having models solve chess puzzle positions, evaluating lookahead and pattern recognition abilities.
Claude Fable 5.1
45.3
GPT-6 Sol
53.7
Dtbench
Claude Fable 5.1 leads by +0.5
Claude Fable 5.1
96.0
GPT-6 Sol
95.5
Ebr Bench
Claude Fable 5.1 leads by +3.8
Claude Fable 5.1
57.1
GPT-6 Sol
53.3
Frontiercode
Claude Fable 5.1 leads by +1.6
Claude Fable 5.1
50.9
GPT-6 Sol
49.3
FrontierMath-Tier-4-v2-Private
GPT-6 Sol leads by +2.2
Claude Fable 5.1
87.8
GPT-6 Sol
90.0
FrontierMath-Tiers-1-3-v2-Private
Claude Fable 5.1 leads by +0.4
Claude Fable 5.1
90.2
GPT-6 Sol
89.8
Furniture Assembly
Claude Fable 5.1 leads by +16.7
Claude Fable 5.1
57.1
GPT-6 Sol
40.5
Lmca
Claude Fable 5.1 leads by +7.5
Claude Fable 5.1
77.0
GPT-6 Sol
69.5
Mystery Game Puzzles
Claude Fable 5.1 leads by +2.2
Claude Fable 5.1
53.7
GPT-6 Sol
51.5
OTIS Mock AIME 2024-2025
OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills.
Claude Fable 5.1
100.0
GPT-6 Sol
100.0
Proofbench
Claude Fable 5.1 leads by +17.0
Claude Fable 5.1
100.0
GPT-6 Sol
83.0
SimpleQA Verified
Claude Fable 5.1 leads by +10.1
SimpleQA Verified · short factual questions with verified answers, measuring factual accuracy and the tendency to hallucinate or provide incorrect information.
Claude Fable 5.1
70.8
GPT-6 Sol
60.7
SpireClimb
GPT-6 Sol leads by +5.5
Claude Fable 5.1
2.0
GPT-6 Sol
7.5
Full benchmark table
| Benchmark | Claude Fable 5.1 | GPT-6 Sol |
|---|---|---|
APEX-Agents APEX-Agents · evaluates AI agents on complex, multi-step tasks requiring planning, tool use, and autonomous decision-making in realistic environments. | 68.6 | 54.3 |
ARC-AGI ARC-AGI · the original Abstraction and Reasoning Corpus, testing whether AI can solve novel visual pattern recognition tasks without memorization. | 97.5 | 95.5 |
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. | 90.0 | 89.6 |
Chess Puzzles Chess Puzzles · tests strategic and tactical reasoning by having models solve chess puzzle positions, evaluating lookahead and pattern recognition abilities. | 45.3 | 53.7 |
Dtbench | 96.0 | 95.5 |
Ebr Bench | 57.1 | 53.3 |
Frontiercode | 50.9 | 49.3 |
FrontierMath-Tier-4-v2-Private | 87.8 | 90.0 |
FrontierMath-Tiers-1-3-v2-Private | 90.2 | 89.8 |
Furniture Assembly | 57.1 | 40.5 |
Lmca | 77.0 | 69.5 |
Mystery Game Puzzles | 53.7 | 51.5 |
OTIS Mock AIME 2024-2025 OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills. | 100.0 | 100.0 |
Proofbench | 100.0 | 83.0 |
SimpleQA Verified SimpleQA Verified · short factual questions with verified answers, measuring factual accuracy and the tendency to hallucinate or provide incorrect information. | 70.8 | 60.7 |
SpireClimb | 2.0 | 7.5 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $10.00 | $50.00 | 1.0M tokens (~500 books) | $200.00 | |
| $2.00 | $10.00 | 1.1M tokens (~525 books) | $40.00 |