GPT-5.1-Codex is a specialized version of GPT-5.1 optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks....
Model details →OpenAI: GPT-5.1-Codex vs SpaceXAI: Grok 4.7
SpaceXAI: Grok 4.7 wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
Grok 4.7 is SpaceXAI's flagship model for coding, agentic tasks, and knowledge work, succeeding Grok 4.6. It is particularly strong at long-running software engineering tasks, verifying its own work, and...
Model details →Side-by-side comparison
| Capability | OpenAI: GPT-5.1-Codex | SpaceXAI: Grok 4.7 | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 400K | 500K | 🏆 SpaceXAI: Grok 4.7 |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $1.25 | $1.60 | 🏆 OpenAI: GPT-5.1-Codex |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $10.00 | $4.80 | 🏆 SpaceXAI: Grok 4.7 |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is OpenAI: GPT-5.1-Codex better than SpaceXAI: Grok 4.7?
SpaceXAI: Grok 4.7 wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between OpenAI: GPT-5.1-Codex and SpaceXAI: Grok 4.7?
Input: $1.25 vs $1.60 per 1M tokens. Output: $10.00 vs $4.80 per 1M tokens.
What context windows do OpenAI: GPT-5.1-Codex and SpaceXAI: Grok 4.7 support?
OpenAI: GPT-5.1-Codex supports up to 400K tokens. SpaceXAI: Grok 4.7 supports up to 500K tokens.
Do both OpenAI: GPT-5.1-Codex and SpaceXAI: Grok 4.7 support tool calling?
OpenAI: GPT-5.1-Codex: yes. SpaceXAI: Grok 4.7: yes.