Compare · ModelsLive · 2 picked · head to head
Claude Opus 4.6 (Fast) vs GPT-5 Pro
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
Claude Opus 4.6 (Fast) wins on 2/2 benchmarks
Claude Opus 4.6 (Fast) wins 2 of 2 shared benchmarks. Leads in knowledge.
Category leads
knowledge·Claude Opus 4.6 (Fast)
Hype vs Reality
Attention vs performance
Claude Opus 4.6 (Fast)
#120 by perf·no signal
GPT-5 Pro
#122 by perf·no signal
Best value
GPT-5 Pro
1.3x better value than Claude Opus 4.6 (Fast)
Claude Opus 4.6 (Fast)
0.5 pts/$
$90.00/M
GPT-5 Pro
0.6 pts/$
$67.50/M
Vendor risk
Who is behind the model
Anthropic
$380.0B·Tier 1
OpenAI
$840.0B·Tier 1
Head to head
2 benchmarks · 2 models
Claude Opus 4.6 (Fast)GPT-5 Pro
Professional Reasoning · Finance
Claude Opus 4.6 (Fast) leads by +2.2
Claude Opus 4.6 (Fast)
53.3
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 Pro
49.9
Full benchmark table
| Benchmark | Claude Opus 4.6 (Fast) | GPT-5 Pro |
|---|---|---|
Professional Reasoning · Finance | 53.3 | 51.1 |
Professional Reasoning · Legal | 52.3 | 49.9 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| Claude Opus 4.6 (Fast) | $30.00 | $150.00 | 1.0M tokens (~500 books) | $600.00 |
| GPT-5 Pro | $15.00 | $120.00 | 400K tokens (~200 books) | $412.50 |