o4-mini vs Grok 4
Side-by-side comparison of API pricing, specs, benchmarks, and capabilities
|
by OpenAI
|
by xAI
|
|
|---|---|---|
| Overview | ||
| Status | Current reasoning | Current flagship |
| Released | Apr 17, 2025 | Jul 9, 2025 |
| Pricing per million tokens | ||
| Input | $1.10/Mtok | $3.00/Mtok |
| Output | $4.40/Mtok | $15.00/Mtok |
| Blended avg | $2.75/Mtok | $9.00/Mtok |
| Cached input | $0.550/Mtok | — |
| Specifications | ||
| Context window | 200K tokens | 256K tokens |
| Parameters | Proprietary | Proprietary |
| Speed (TPS) | — | — |
| Modalities | ||
| Input |
textimage
|
textimage
|
| Benchmarks from Vellum LLM Leaderboard | ||
| Avg benchmark score | 73.7 | 66.2 |
| Perf / dollar | 26.8 | 7.4 |
| GPQA Diamond | 82 | 75 |
| SWE-Bench | 68 | 55 |
| HumanEval | 92 | 87 |
| MATH 500 | 90 | 82 |
| Providers | ||
| Available from |
OpenAI — $1.10/$4.40/Mtok
|
xAI — $3.00/$15.00/Mtok
|
Cost at scale — 1M tokens (50/50 input/output)
| Volume | o4-mini | Grok 4 | Savings |
|---|---|---|---|
| 1M tokens | $2.75 | $9 | $6.25 (69.4%) |
| 10M tokens | $27.5 | $90 | $62.5 (69.4%) |
| 100M tokens | $275 | $900 | $625 (69.4%) |
| 1000M tokens | $2750 | $9000 | $6250 (69.4%) |
Summary
o4-mini by OpenAI costs $1.10/Mtok input and $4.40/Mtok output, with a 200K-token context window. It supports text, image input.
Grok 4 by xAI costs $3.00/Mtok input and $15.00/Mtok output, with a 256K-token context window. It supports text, image input.
On a blended cost basis, o4-mini is 227.3% cheaper than Grok 4.
On benchmarks, o4-mini scores higher (73.7 vs 66.2) on average. In terms of value, o4-mini has better performance per dollar (26.8 vs 7.4).
Note: Pricing is per million tokens. Actual costs vary with usage patterns, prompt caching, and batch discounts. Always verify against official provider pricing pages.