GPT-5.1 Codex mini vs Grok 3 Mini
Side-by-side comparison of pricing and capabilities
GPT-5.1 Codex mini
Grok 3 Mini
Input Price Comparison
| Attribute | GPT-5.1 Codex mini | Grok 3 Mini |
|---|---|---|
| Provider | OpenAI | xAI |
| Input Price | $0.25 /1M tokens | $0.3 /1M tokens |
| Output Price | $2 /1M tokens | $0.5 /1M tokens |
| Cached Input | $0.025 /1M tokens | $0.075 /1M tokens |
| Context Window | 400K | 131K |
| Type | chat | chat |
| Status | current | current |
Capability Comparison
| Capability | GPT-5.1 Codex mini | Grok 3 Mini |
|---|---|---|
| coding | ||
| reasoning |
Which should you choose?
Budget-conscious: GPT-5.1 Codex mini is 17% cheaper on input tokens ($0.25 vs $0.3 per 1M tokens).
Context-heavy tasks: GPT-5.1 Codex mini offers a larger context window (400K vs 131K), making it better for long documents or conversations.
Capability fit: GPT-5.1 Codex mini supports 1 capabilities (coding), while Grok 3 Mini supports 2 (reasoning, coding).
Frequently Asked Questions
Which is cheaper: GPT-5.1 Codex mini or Grok 3 Mini?
GPT-5.1 Codex mini costs $0.25/1M input vs Grok 3 Mini at $0.3/1M input. GPT-5.1 Codex mini is 17% cheaper on input tokens.
How do output prices compare between GPT-5.1 Codex mini and Grok 3 Mini?
GPT-5.1 Codex mini output: $2/1M, Grok 3 Mini output: $0.5/1M. Grok 3 Mini is more economical for generation-heavy workloads.
What is GPT-5.1 Codex mini best used for?
GPT-5.1 Codex mini is best for budget-conscious applications, high-volume chatbots, and tasks where cost efficiency is the primary concern.
What is Grok 3 Mini best used for?
Grok 3 Mini is suited for complex reasoning, analysis, and tasks that benefit from its reasoning and coding capabilities.