GPT-5.1 Medium vs Grok-3 Mini: Specs & Benchmark Comparison
| Characteristic | GPT-5.1 Medium | Grok-3 Mini |
|---|---|---|
| Company | OpenAI | xAI |
| Release Date | November 11, 2025 | February 16, 2025 |
| Parameters | — | — |
| Multimodal | Yes | Yes |
| Context (input) | 256K | 128K |
| Context (output) | 64K | 8K |
| Input Price / 1M | $1.00 | $0.30 |
| Output Price / 1M | $4.00 | $0.50 |
| Average Score | 1.0 | 0.9 |
| Benchmarks | ||
| AIME 2025 | 1.0 | 0.9 |
Visual Benchmark Comparison
GPT-5.1 Medium
Grok-3 Mini
AIME 20251.0 vs 0.9
1.0
0.9
Verdict
GPT-5.1 Medium leads in 2 out of 4 comparison categories.
Overall Performance
Both models show comparable average scores: GPT-5.1 Medium — 1.0, Grok-3 Mini — 0.9.
API Cost
Grok-3 Mini is 6.3x cheaper: input $0.30/1M vs $1.00/1M tokens.
Context Window
GPT-5.1 Medium supports a larger context: 256K vs 128K tokens.
Recency
GPT-5.1 Medium is newer: released 11/11/2025 vs 2/16/2025.
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The GPT-5.1 Medium and Grok-3 Mini 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 Medium or Grok-3 Mini page. See also the complete list of AI model comparisons.