The 2024-08-06 version of GPT-4o offers improved performance in structured outputs, with the ability to supply a JSON schema in the respone_format. Read more [here](https://openai.com/index/introducing-structured-outputs-in-the-api/). GPT-…
Model details →OpenAI: GPT-4o (2024-08-06) vs xAI: Grok 3
OpenAI: GPT-4o (2024-08-06) wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
Grok 3 is the latest model from xAI. It's their flagship model that excels at enterprise use cases like data extraction, coding, and text summarization. Possesses deep domain knowledge in finance, healthcare, law, and science.
Model details →Side-by-side comparison
| Capability | OpenAI: GPT-4o (2024-08-06) | xAI: Grok 3 | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 128K | 131K | 🏆 xAI: Grok 3 |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $2.50 | $3.00 | 🏆 OpenAI: GPT-4o (2024-08-06) |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $10.00 | $15.00 | 🏆 OpenAI: GPT-4o (2024-08-06) |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | — | 🏆 OpenAI: GPT-4o (2024-08-06) |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | — | — | Tie |
Frequently asked questions
Is OpenAI: GPT-4o (2024-08-06) better than xAI: Grok 3?
OpenAI: GPT-4o (2024-08-06) wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between OpenAI: GPT-4o (2024-08-06) and xAI: Grok 3?
Input: $2.50 vs $3.00 per 1M tokens. Output: $10.00 vs $15.00 per 1M tokens.
What context windows do OpenAI: GPT-4o (2024-08-06) and xAI: Grok 3 support?
OpenAI: GPT-4o (2024-08-06) supports up to 128K tokens. xAI: Grok 3 supports up to 131K tokens.
Do both OpenAI: GPT-4o (2024-08-06) and xAI: Grok 3 support tool calling?
OpenAI: GPT-4o (2024-08-06): yes. xAI: Grok 3: yes.