Compare · ModelsLive · 2 picked · head to head
Claude Opus 4.8 vs Claude Opus 4.6 (Fast)
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
Claude Opus 4.8 wins on 1/2 benchmarks
Claude Opus 4.8 wins 1 of 2 shared benchmarks. Leads in arena.
Category leads
arena·Claude Opus 4.8
Hype vs Reality
Attention vs performance
Claude Opus 4.8
#47 by perf·no signal
Claude Opus 4.6 (Fast)
#150 by perf·no signal
Best value
Claude Opus 4.8
8.5x better value than Claude Opus 4.6 (Fast)
Claude Opus 4.8
4.1 pts/$
$15.00/M
Claude Opus 4.6 (Fast)
0.5 pts/$
$90.00/M
Vendor risk
Who is behind the model
Anthropic
$380.0B·Tier 1
Anthropic
$380.0B·Tier 1
Head to head
2 benchmarks · 2 models
Claude Opus 4.8Claude Opus 4.6 (Fast)
Chatbot Arena Elo · Coding
Claude Opus 4.8 leads by +0.1
Claude Opus 4.8
1542.3
Claude Opus 4.6 (Fast)
1542.2
Chatbot Arena Elo · Overall
Claude Opus 4.6 (Fast) leads by +25.8
Claude Opus 4.8
1477.8
Claude Opus 4.6 (Fast)
1503.7
Full benchmark table
| Benchmark | Claude Opus 4.8 | Claude Opus 4.6 (Fast) |
|---|---|---|
Chatbot Arena Elo · Coding | 1542.3 | 1542.2 |
Chatbot Arena Elo · Overall | 1477.8 | 1503.7 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $5.00 | $25.00 | 1.0M tokens (~500 books) | $100.00 | |
| $30.00 | $150.00 | 1.0M tokens (~500 books) | $600.00 |