Compare · ModelsLive · 2 picked · head to head
GPT-5 Chat vs Grok 3 Beta
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
GPT-5 Chat wins on 5/6 benchmarks
GPT-5 Chat wins 5 of 6 shared benchmarks. Leads in coding · knowledge · math.
Category leads
coding·GPT-5 Chatknowledge·GPT-5 Chatlanguage·Grok 3 Betamath·GPT-5 Chatreasoning·GPT-5 Chat
Hype vs Reality
Attention vs performance
GPT-5 Chat
#1 by perf·#1 by attention
Grok 3 Beta
#16 by perf·no signal
Best value
GPT-5 Chat
1.9x better value than Grok 3 Beta
GPT-5 Chat
14.6 pts/$
$5.63/M
Grok 3 Beta
7.7 pts/$
$9.00/M
Vendor risk
Who is behind the model
OpenAI
$840.0B·Tier 1
xAI
$250.0B·Tier 1
Head to head
6 benchmarks · 2 models
GPT-5 ChatGrok 3 Beta
Aider polyglot
GPT-5 Chat leads by +34.7
Aider Polyglot · measures how well AI models can edit code across multiple programming languages using the Aider coding assistant framework.
GPT-5 Chat
88.0
Grok 3 Beta
53.3
HELM · GPQA
GPT-5 Chat leads by +14.1
GPT-5 Chat
79.1
Grok 3 Beta
65.0
HELM · IFEval
Grok 3 Beta leads by +0.9
GPT-5 Chat
87.5
Grok 3 Beta
88.4
HELM · MMLU-Pro
GPT-5 Chat leads by +7.5
GPT-5 Chat
86.3
Grok 3 Beta
78.8
HELM · Omni-MATH
GPT-5 Chat leads by +18.3
GPT-5 Chat
64.7
Grok 3 Beta
46.4
HELM · WildBench
GPT-5 Chat leads by +0.8
GPT-5 Chat
85.7
Grok 3 Beta
84.9
Full benchmark table
| Benchmark | GPT-5 Chat | Grok 3 Beta |
|---|---|---|
Aider polyglot Aider Polyglot · measures how well AI models can edit code across multiple programming languages using the Aider coding assistant framework. | 88.0 | 53.3 |
HELM · GPQA | 79.1 | 65.0 |
HELM · IFEval | 87.5 | 88.4 |
HELM · MMLU-Pro | 86.3 | 78.8 |
HELM · Omni-MATH | 64.7 | 46.4 |
HELM · WildBench | 85.7 | 84.9 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| GPT-5 Chat | $1.25 | $10.00 | 128K tokens (~64 books) | $34.38 |
| Grok 3 Beta | $3.00 | $15.00 | 131K tokens (~66 books) | $60.00 |