GPT-5.1 High vs Grok-3: Specs & Benchmark Comparison
| Characteristic | GPT-5.1 High | Grok-3 |
|---|---|---|
| Company | OpenAI | xAI |
| Release Date | November 11, 2025 | February 16, 2025 |
| Parameters | — | — |
| Multimodal | Yes | Yes |
| Context (input) | 256K | 128K |
| Context (output) | 128K | 8K |
| Input Price / 1M | $2.00 | $3.00 |
| Output Price / 1M | $8.00 | $15.00 |
| Average Score | 0.9 | 0.8 |
| Benchmarks | ||
| GPQA | 0.9 | 0.8 |
Visual Benchmark Comparison
GPT-5.1 High
Grok-3
GPQA0.9 vs 0.8
0.9
0.8
Verdict
GPT-5.1 High leads in 3 out of 4 comparison categories.
Overall Performance
Both models show comparable average scores: GPT-5.1 High — 0.9, Grok-3 — 0.8.
API Cost
GPT-5.1 High is 1.8x cheaper: input $2.00/1M vs $3.00/1M tokens.
Context Window
GPT-5.1 High supports a larger context: 256K vs 128K tokens.
Recency
GPT-5.1 High is newer: released 11/11/2025 vs 2/16/2025.
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Frequently Asked Questions
Which is better for coding — GPT-5.1 High or Grok-3?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — GPT-5.1 High or Grok-3?
GPT-5.1 High is cheaper for input: $2.00 per 1M tokens vs $3.00.
Which has a larger context window — GPT-5.1 High or Grok-3?
GPT-5.1 High supports a larger context: 256,000 tokens vs 128,000.
The GPT-5.1 High and Grok-3 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the GPT-5.1 High or Grok-3 page. See also the complete list of AI model comparisons.