GPT-4o Mini vs Grok 4 Fast ≤128k
Side-by-side comparison of pricing and capabilities
GPT-4o Mini
Grok 4 Fast ≤128k
Input Price Comparison
| Attribute | GPT-4o Mini | Grok 4 Fast ≤128k |
|---|---|---|
| Provider | OpenAI | xAI |
| Input Price | $0.15 /1M tokens | $0.2 /1M tokens |
| Output Price | $0.6 /1M tokens | $0.5 /1M tokens |
| Cached Input | $0.075 /1M tokens | $0.050 /1M tokens |
| Context Window | 128K | 131K |
| Type | chat | chat |
| Status | current | current |
Capability Comparison
| Capability | GPT-4o Mini | Grok 4 Fast ≤128k |
|---|---|---|
| coding | ||
| vision | ||
| multilingual |
Which should you choose?
Budget-conscious: GPT-4o Mini is 25% cheaper on input tokens ($0.15 vs $0.2 per 1M tokens).
Context-heavy tasks: Grok 4 Fast ≤128k offers a larger context window (131K vs 128K), making it better for long documents or conversations.
Capability fit: GPT-4o Mini supports 3 capabilities (coding, vision, multilingual), while Grok 4 Fast ≤128k supports 1 (coding).
Frequently Asked Questions
Which is cheaper: GPT-4o Mini or Grok 4 Fast ≤128k?
GPT-4o Mini costs $0.15/1M input vs Grok 4 Fast ≤128k at $0.2/1M input. GPT-4o Mini is 25% cheaper on input tokens.
How do output prices compare between GPT-4o Mini and Grok 4 Fast ≤128k?
GPT-4o Mini output: $0.6/1M, Grok 4 Fast ≤128k output: $0.5/1M. Grok 4 Fast ≤128k is more economical for generation-heavy workloads.
What is GPT-4o Mini best used for?
GPT-4o Mini is best for budget-conscious applications, high-volume chatbots, and tasks where cost efficiency is the primary concern.
What is Grok 4 Fast ≤128k best used for?
Grok 4 Fast ≤128k is suited for complex reasoning, analysis, and tasks that benefit from its coding capabilities.