Compare · ModelsLive · 2 picked · head to head
Claude Opus 4.6 (Fast) vs GPT-5
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
#72 by perf·no signal
Best value
GPT-5
20.1x better value than Claude Opus 4.6 (Fast)
Claude Opus 4.6 (Fast)
0.5 pts/$
$90.00/M
GPT-5
9.7 pts/$
$5.63/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
Professional Reasoning · Finance
Claude Opus 4.6 (Fast) leads by +2.0
Claude Opus 4.6 (Fast)
53.3
GPT-5
51.3
Professional Reasoning · Legal
Claude Opus 4.6 (Fast) leads by +3.3
Claude Opus 4.6 (Fast)
52.3
GPT-5
49.0
Full benchmark table
| Benchmark | Claude Opus 4.6 (Fast) | GPT-5 |
|---|---|---|
Professional Reasoning · Finance | 53.3 | 51.3 |
Professional Reasoning · Legal | 52.3 | 49.0 |
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 | $1.25 | $10.00 | 400K tokens (~200 books) | $34.38 |