Gemini 3 Pro vs Grok 4
Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.
Gemini 3 Pro
73.6Google · Nov 2025
Google's November 2025 frontier breakout — 91.9% GPQA Diamond and 37.5% HLE made it the reasoning leader of its generation.
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
Gemini 3 Pro wins 3 of the 3 benchmarks these models share, against 0 for Grok 4. Gemini 3 Pro is about 1.3x cheaper per blended million tokens (3:1 input:output mix). Gemini 3 Pro also takes 1M of context versus 256K for Grok 4.
Benchmark head-to-head 3–0
Specs & pricing
| Gemini 3 Pro | Grok 4 | |
|---|---|---|
| modhub Index | 73.6 | — |
| Input price / 1M | $2 | $3 |
| Output price / 1M | $12 | $15 |
| Context window | 1M | 256K |
| Max output | 66K | — |
| Open weights | no | no |
| Reasoning model | yes | yes |
| Multimodal input | text, image, audio, video | text, image |
| Knowledge cutoff | Jan 2025 | Jul 2025 |
| Released | Nov 2025 | Jul 2025 |
| Example monthly cost* | $38.00 | $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, Gemini 3 Pro or Grok 4?
- Gemini 3 Pro wins 3 of the 3 benchmarks these models share, against 0 for Grok 4. Gemini 3 Pro is about 1.3x cheaper per blended million tokens (3:1 input:output mix). Gemini 3 Pro also takes 1M of context versus 256K for Grok 4.
- Which is cheaper, Gemini 3 Pro or Grok 4?
- Gemini 3 Pro costs $2/$12 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 $38.00 versus $52.50.
- Which model is better for coding, Gemini 3 Pro or Grok 4?
- We don't yet track SWE-bench Verified results for both models; check their individual pages for coding-related scores.