Gemini 3 Pro vs Grok 4.5: Specs & Benchmark Comparison
| Characteristic | Gemini 3 Pro | Grok 4.5 |
|---|---|---|
| Company | xAI | |
| Release Date | November 17, 2025 | July 16, 2026 |
| Parameters | — | — |
| Multimodal | Yes | Yes |
| Context (input) | 1.0M | 500K |
| Context (output) | 66K | — |
| Input Price / 1M | $2.00 | $2.00 |
| Output Price / 1M | $12.00 | $6.00 |
| Average Score | 0.9 | 0.8 |
| Benchmarks | ||
| GPQA | 0.9 | 0.9 |
Visual Benchmark Comparison
Gemini 3 Pro
Grok 4.5
GPQA0.9 vs 0.9
0.9
0.9
Verdict
Grok 4.5 leads in 2 out of 4 comparison categories.
Overall Performance
Both models show comparable average scores: Gemini 3 Pro — 0.9, Grok 4.5 — 0.8.
API Cost
Grok 4.5 is 1.8x cheaper: input $2.00/1M vs $2.00/1M tokens.
Context Window
Gemini 3 Pro supports a larger context: 1M vs 500K tokens.
Recency
Grok 4.5 is newer: released 7/16/2026 vs 11/17/2025.
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Frequently Asked Questions
Which is better for coding — Gemini 3 Pro or Grok 4.5?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Gemini 3 Pro or Grok 4.5?
Gemini 3 Pro is cheaper for input: $2.00 per 1M tokens vs $2.00.
Which has a larger context window — Gemini 3 Pro or Grok 4.5?
Gemini 3 Pro supports a larger context: 1,048,576 tokens vs 500,000.
The Gemini 3 Pro and Grok 4.5 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Gemini 3 Pro or Grok 4.5 page. See also the complete list of AI model comparisons.