GPT-4o mini vs Grok 4
Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.
GPT-4o mini
OpenAI · Jul 2024
The 2024 budget classic that defined the cheap-LLM tier; GPT-5 nano and mini have since taken its crown.
Grok 4
xAI · Jul 2025
xAI's mid-2025 flagship, trained on the 200K-GPU Colossus cluster — a math and science reasoning standout of its generation.
The verdict
These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. On price the gap is dramatic: GPT-4o mini works out roughly 23x cheaper per blended million tokens. Grok 4 also takes 256K of context versus 128K for GPT-4o mini.
Specs & pricing
| GPT-4o mini | Grok 4 | |
|---|---|---|
| modhub Index | — | — |
| Input price / 1M | $0.15 | $3 |
| Output price / 1M | $0.6 | $15 |
| Context window | 128K | 256K |
| Max output | 16K | — |
| Open weights | no | no |
| Reasoning model | no | yes |
| Multimodal input | text, image | text, image |
| Knowledge cutoff | Oct 2023 | Jul 2025 |
| Released | Jul 2024 | Jul 2025 |
| Example monthly cost* | $2.40 | $52.50 |
* 10M input + 1.5M output tokens per month at list prices, no caching. Green = better value on that row.
Frequently asked questions
- Which is better, GPT-4o mini or Grok 4?
- These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. On price the gap is dramatic: GPT-4o mini works out roughly 23x cheaper per blended million tokens. Grok 4 also takes 256K of context versus 128K for GPT-4o mini.
- Which is cheaper, GPT-4o mini or Grok 4?
- GPT-4o mini costs $0.15/$0.6 per million input/output tokens, while Grok 4 costs $3/$15. For a typical workload of 10M input and 1.5M output tokens per month, that's $2.40 versus $52.50.
- Which model is better for coding, GPT-4o mini or Grok 4?
- We don't yet track SWE-bench Verified results for both models; check their individual pages for coding-related scores.