GPT-5.2 vs Grok-3: Specs & Benchmark Comparison
| Characteristic | GPT-5.2 | Grok-3 |
|---|---|---|
| Company | OpenAI | xAI |
| Release Date | December 10, 2025 | February 16, 2025 |
| Parameters | — | — |
| Multimodal | Yes | Yes |
| Context (input) | 256K | 128K |
| Context (output) | 128K | 8K |
| Input Price / 1M | $1.50 | $3.00 |
| Output Price / 1M | $6.00 | $15.00 |
| Average Score | 1.0 | 0.8 |
| Benchmarks | ||
| GPQA | 0.9 | 0.8 |
Visual Benchmark Comparison
GPT-5.2
Grok-3
GPQA0.9 vs 0.8
0.9
0.8
Verdict
GPT-5.2 leads in 3 out of 4 comparison categories.
Overall Performance
Both models show comparable average scores: GPT-5.2 — 1.0, Grok-3 — 0.8.
API Cost
GPT-5.2 is 2.4x cheaper: input $1.50/1M vs $3.00/1M tokens.
Context Window
GPT-5.2 supports a larger context: 256K vs 128K tokens.
Recency
GPT-5.2 is newer: released 12/10/2025 vs 2/16/2025.
More About These Models
Related Comparisons
Frequently Asked Questions
Which is better for coding — GPT-5.2 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-5.2 or Grok-3?
GPT-5.2 is cheaper for input: $1.50 per 1M tokens vs $3.00.
Which has a larger context window — GPT-5.2 or Grok-3?
GPT-5.2 supports a larger context: 256,000 tokens vs 128,000.
The GPT-5.2 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-5.2 or Grok-3 page. See also the complete list of AI model comparisons.