GPT-4o vs Grok 3
GPT-4o leads in 4 of 8 categories
Arena ELO
GPT-4o
Cheaper
GPT-4o
Faster
GPT-4o
Detailed Comparison
| Category | GPT-4o | Grok 3 |
|---|---|---|
| Provider | OpenAI | xAI |
| Context Window | 128K | 131K WIN |
| Input Price ($/1M) | $2.5 WIN | $3 |
| Output Price ($/1M) | $10 WIN | $15 |
| Arena ELO | 1340 WIN | 1325 |
| Coding | 30.8% SWE-bench | unknown |
| Reasoning | unknown | 93.3% AIME 2025 |
| Speed (tokens/sec) | ~100 t/s WIN | ~55 t/s |
| Open Source | No | No |
Frequently Asked Questions
Which is cheaper, GPT-4o or Grok 3?
GPT-4o is approximately 31% cheaper than Grok 3 per million tokens.
Which is better for coding, GPT-4o or Grok 3?
GPT-4o scores 30.8% SWE-bench on coding benchmarks, while Grok 3 scores unknown.
Which has a larger context window?
GPT-4o supports 128K context, while Grok 3 supports 131K.
Is GPT-4o or Grok 3 open source?
GPT-4o is proprietary. Grok 3 is proprietary.
Which ranks higher on the Chatbot Arena leaderboard?
GPT-4o ranks higher with ELO 1340 vs 1325.
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