Compare · ModelsLive · 2 picked · head to head
Claude Opus 5.5 vs Grok 3 Beta
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
Claude Opus 5.5 wins on 0/0 benchmarks
Not enough overlapping benchmarks to declare a winner yet · Claude Opus 5.5 · Grok 3 Beta are still filling in scores.
Hype vs Reality
Attention vs performance
Claude Opus 5.5
#3 by perf·#6 by attention
Grok 3 Beta
#19 by perf·no signal
Best value
Grok 3 Beta
1.1x better value than Claude Opus 5.5
Claude Opus 5.5
6.9 pts/$
$12.00/M
Grok 3 Beta
7.7 pts/$
$9.00/M
Vendor risk
Who is behind the model
Anthropic
$965.0B·Tier 1
xAI
$250.0B·Tier 1
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $4.00 | $20.00 | 1.0M tokens (~500 books) | $80.00 | |
| $3.00 | $15.00 | 131K tokens (~66 books) | $60.00 |
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