Head-to-head · Updated
Data verifiedGemini 3.1 Pro and Grok 4 are two of the most capable non-OpenAI, non-Anthropic models in 2026 — and they match up closely. Both offer 2M token context windows. Gemini 3.1 Pro edges Grok on research benchmarks (ARC-AGI-2: 77.1%) and is tightly integrated with Google Workspace. Grok 4 counters with real-time X/Twitter data access and identical pricing at $2/1M input. For research and Google ecosystem users, Gemini wins. For real-time data and X integration, Grok has no rival.
Gemini 3.1 Pro
Best for research and deep document analysis — 2M context at the best premium price.
WinnerGrok 4
Strong coding value with 2M context — an underrated pick at this price.
| Gemini 3.1 Pro | Grok 4 | |
|---|---|---|
| Input cost / 1M tokens | $$2.00/1M | $$1.25/1M |
| Output cost / 1M tokens | $$12.00/1M | $$2.50/1M |
| Context window | 2M tokens | 2M tokens |
| Speed | Balanced | Fast |
| Price tier | Premium | Balanced |
| Benchmarks | ||
| SWE-bench (coding) | 63.2% | 54% |
| Arena Elo | 1,380 | 1,305 |
| MMLU | 90% | 87.5% |
Which model wins for each use case — and why.
Gemini 3.1 Pro leads reasoning benchmarks including ARC-AGI-2 at 77.1% and integrates natively with Google Search for deep research tasks.
Grok 4 has exclusive access to real-time X/Twitter data — no other model can match this for social media analysis, trending topics, and current events.
Both Gemini 3.1 Pro and Grok 4 offer 2M token context windows — the largest available among frontier models. Neither has an advantage here.
Gemini 3.1 Pro edges Grok 4 on coding benchmarks and has better integration with Google's developer tools and Vertex AI.
Both models are priced identically at $2/1M input. Gemini's output is $12/1M vs Grok's $6/1M — Grok is cheaper on output tokens.
Pick Gemini 3.1 Pro if…
Pick Grok 4 if…
Bottom line
For most workflows, Gemini 3.1 Pro is the stronger choice.
The best research and long-context model available. Handles entire codebases, legal documents, and large datasets in a single pass — at a lower price than GPT-5.4 or Claude Sonnet 4.6.
Is Gemini or Grok better in 2026?
Gemini 3.1 Pro leads on research benchmarks and Google ecosystem integration. Grok 4 is the only model with real-time X/Twitter data. For most users, Gemini is the stronger general-purpose choice.
Do Gemini and Grok have the same context window?
Yes — both Gemini 3.1 Pro and Grok 4 offer 2M token context windows, the largest among frontier models. For large document analysis, they're equally capable.
Which is cheaper — Gemini or Grok?
Input pricing is identical at $2/1M. Grok 4 is cheaper on output at $6/1M vs Gemini 3.1 Pro's $12/1M. For output-heavy workloads, Grok has a meaningful cost advantage.
Can Gemini access real-time data?
Gemini can integrate with Google Search for current information. Grok has exclusive real-time access to X/Twitter data. Both have real-time capabilities but from different sources.
Which is better for Google Workspace users?
Gemini 3.1 Pro is built for Google Workspace integration — it works natively in Gmail, Docs, Sheets, and Meet. Grok has no Google integration.
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