Compare · ModelsLive · 2 picked · head to head
Grok 3 Beta vs GPT-5.3-Codex
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
Grok 3 Beta wins on 0/0 benchmarks
Not enough overlapping benchmarks to declare a winner yet · Grok 3 Beta · GPT-5.3-Codex are still filling in scores.
Hype vs Reality
Attention vs performance
Grok 3 Beta
#18 by perf·no signal
GPT-5.3-Codex
#86 by perf·no signal
Best value
Grok 3 Beta
1.2x better value than GPT-5.3-Codex
Grok 3 Beta
7.7 pts/$
$9.00/M
GPT-5.3-Codex
6.6 pts/$
$7.88/M
Vendor risk
Who is behind the model
xAI
$250.0B·Tier 1
OpenAI
$840.0B·Tier 1
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $3.00 | $15.00 | 131K tokens (~66 books) | $60.00 | |
| $1.75 | $14.00 | 400K tokens (~200 books) | $48.13 |