Compare · ModelsLive · 3 picked · head to head
Claude Opus 4.6 (Fast) vs GPT-5 vs GPT-5 Pro
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
GPT-5 Pro wins on 5/8 benchmarks
GPT-5 Pro wins 5 of 8 shared benchmarks. Leads in reasoning · math.
Category leads
knowledge·Claude Opus 4.6 (Fast)reasoning·GPT-5 Promath·GPT-5 Procoding·GPT-5
Hype vs Reality
Attention vs performance
Claude Opus 4.6 (Fast)
#122 by perf·no signal
GPT-5
#74 by perf·no signal
GPT-5 Pro
#124 by perf·no signal
Best value
GPT-5
15.1x better value than GPT-5 Pro
Claude Opus 4.6 (Fast)
0.5 pts/$
$90.00/M
GPT-5
9.7 pts/$
$5.63/M
GPT-5 Pro
0.6 pts/$
$67.50/M
Vendor risk
Who is behind the model
Anthropic
$380.0B·Tier 1
OpenAI
$840.0B·Tier 1
OpenAI
$840.0B·Tier 1
Head to head
8 benchmarks · 3 models
Claude Opus 4.6 (Fast)GPT-5GPT-5 Pro
Professional Reasoning · Finance
Claude Opus 4.6 (Fast) leads by +2.0
Claude Opus 4.6 (Fast)
53.3
GPT-5
51.3
GPT-5 Pro
51.1
Professional Reasoning · Legal
Claude Opus 4.6 (Fast) leads by +2.4
Claude Opus 4.6 (Fast)
52.3
GPT-5
49.0
GPT-5 Pro
49.9
ARC-AGI
GPT-5 Pro leads by +4.5
ARC-AGI · the original Abstraction and Reasoning Corpus, testing whether AI can solve novel visual pattern recognition tasks without memorization.
GPT-5
65.7
GPT-5 Pro
70.2
ARC-AGI-2
GPT-5 Pro leads by +8.5
ARC-AGI-2 · the second iteration of the Abstraction and Reasoning Corpus, testing novel pattern recognition and abstract reasoning without prior training data.
GPT-5
9.9
GPT-5 Pro
18.3
FrontierMath-Tier-4-2025-07-01-Private
GPT-5 Pro leads by +2.1
FrontierMath Tier 4 (Jul 2025) · the most challenging tier of frontier mathematics, containing problems that push the absolute limits of AI mathematical reasoning.
GPT-5
12.5
GPT-5 Pro
14.6
HLE
GPT-5 Pro leads by +6.6
HLE (Humanity's Last Exam) · a reasoning benchmark designed to be the hardest public evaluation of AI. Questions span mathematics, physics, philosophy, and logic · curated to be at or beyond the frontier of human expert capability. Tested with and without tool augmentation. Claude Opus 4.7 scores 46.9% without tools and 54.7% with tools · making it one of the few benchmarks where the top score is below 60%.
GPT-5
21.6
GPT-5 Pro
28.2
SimpleBench
GPT-5 Pro leads by +5.9
SimpleBench · tests fundamental reasoning capabilities with straightforward problems designed to expose gaps in basic logical and spatial thinking.
GPT-5
48.0
GPT-5 Pro
53.9
WeirdML
GPT-5 leads by +0.3
WeirdML · tests models on unusual and adversarial machine learning tasks that require creative problem-solving beyond standard patterns.
GPT-5
60.7
GPT-5 Pro
60.4
Full benchmark table
| Benchmark | Claude Opus 4.6 (Fast) | GPT-5 | GPT-5 Pro |
|---|---|---|---|
Professional Reasoning · Finance | 53.3 | 51.3 | 51.1 |
Professional Reasoning · Legal | 52.3 | 49.0 | 49.9 |
ARC-AGI ARC-AGI · the original Abstraction and Reasoning Corpus, testing whether AI can solve novel visual pattern recognition tasks without memorization. | — | 65.7 | 70.2 |
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. | — | 9.9 | 18.3 |
FrontierMath-Tier-4-2025-07-01-Private FrontierMath Tier 4 (Jul 2025) · the most challenging tier of frontier mathematics, containing problems that push the absolute limits of AI mathematical reasoning. | — | 12.5 | 14.6 |
HLE HLE (Humanity's Last Exam) · a reasoning benchmark designed to be the hardest public evaluation of AI. Questions span mathematics, physics, philosophy, and logic · curated to be at or beyond the frontier of human expert capability. Tested with and without tool augmentation. Claude Opus 4.7 scores 46.9% without tools and 54.7% with tools · making it one of the few benchmarks where the top score is below 60%. | — | 21.6 | 28.2 |
SimpleBench SimpleBench · tests fundamental reasoning capabilities with straightforward problems designed to expose gaps in basic logical and spatial thinking. | — | 48.0 | 53.9 |
WeirdML WeirdML · tests models on unusual and adversarial machine learning tasks that require creative problem-solving beyond standard patterns. | — | 60.7 | 60.4 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $30.00 | $150.00 | 1.0M tokens (~500 books) | $600.00 | |
| $1.25 | $10.00 | 400K tokens (~200 books) | $34.38 | |
| $15.00 | $120.00 | 400K tokens (~200 books) | $412.50 |