gemini-3.1-pro-preview vs grok-4
Side-by-side comparison of gemini-3.1-pro-preview and grok-4: benchmarks, pricing, context window and capabilities. Both are accessible through Requesty's unified API. gemini-3.1-pro-preview outperforms grok-4 on 5 of 5 shared benchmarks.
gemini-3.1-pro-preview
Input / 1M
$2.00
Output / 1M
$12.00
Context
1.0M
Model ID
google/gemini-3.1-pro-preview
xAI Corp.
grok-4
Input / 1M
$3.00
Output / 1M
$15.00
Context
256K
Model ID
xai/grok-4
Benchmark comparison
Intelligence Indexreasoning
gemini-3.1-pro-preview36.7%
grok-426.5%
Coding Indexcoding
gemini-3.1-pro-preview68.8%
grok-4N/A
Math Indexmath
gemini-3.1-pro-previewN/A
grok-492.7%
GPQA Diamondreasoning
gemini-3.1-pro-preview94.1%
grok-487.7%
AIME 2025math
gemini-3.1-pro-previewN/A
grok-492.7%
LiveCodeBenchcoding
gemini-3.1-pro-previewN/A
grok-481.9%
Terminal-Bench Hardagentic
gemini-3.1-pro-preview53.8%
grok-437.9%
τ²-Benchagentic
gemini-3.1-pro-preview95.6%
grok-474.9%
SciCodecoding
gemini-3.1-pro-preview58.7%
grok-4N/A
MMLU Proknowledge
gemini-3.1-pro-previewN/A
grok-486.6%
Humanity's Last Examreasoning
gemini-3.1-pro-preview47.0%
grok-426.7%
Scores sourced from official model cards, Artificial Analysis, and public leaderboards. Benchmarks measure specific skills and don't capture every aspect of model quality.
Pricing & specifications
| gemini-3.1-pro-preview | grok-4 | |
|---|---|---|
| Input price / 1M | $2.00 | $3.00 |
| Output price / 1M | $12.00 | $15.00 |
| Context window | 1.0M tokens | 256K tokens |
| Max output | 66K tokens | N/A |
| Vision input | Yes | Yes |
| Tool calling | Yes | Yes |
| Reasoning | Yes | N/A |
| Prompt caching | Yes | Yes |
| Computer use | N/A | Yes |
| Provider | Google LLC (Gemini API) | xAI Corp. |
Questions people ask
Is gemini-3.1-pro-preview better than grok-4?
gemini-3.1-pro-preview outperforms grok-4 on 5 of 5 shared benchmarks. See the benchmark comparison above for specifics: gemini-3.1-pro-preview and grok-4 have different strengths across reasoning, coding, math and multimodal tasks.
Which is cheaper, gemini-3.1-pro-preview or grok-4?
gemini-3.1-pro-preview is cheaper. gemini-3.1-pro-preview costs $2.00/$12.00 per 1M input/output tokens, while grok-4 costs $3.00/$15.00.
Can I use gemini-3.1-pro-preview and grok-4 through the same API?
Yes. Requesty provides a single OpenAI-compatible API that routes to both. Change just the "model" parameter to switch between "google/gemini-3.1-pro-preview" and "xai/grok-4", no other code changes needed.
What are the context windows?
gemini-3.1-pro-preview supports up to 1.0M tokens of context. grok-4 supports up to 256K tokens. Longer context means you can feed larger documents or codebases in a single prompt, though quality often degrades past 128K for most models.
Switch between gemini-3.1-pro-preview and grok-4 with one line of code
Requesty provides a single OpenAI-compatible API for 600+ models. Change the model parameter, not your code.