GPT-5.1 Medium vs GPT-5.2: Specs & Benchmark Comparison
| Characteristic | GPT-5.1 Medium | GPT-5.2 |
|---|---|---|
| Company | OpenAI | OpenAI |
| Release Date | November 11, 2025 | December 10, 2025 |
| Parameters | — | — |
| Multimodal | Yes | Yes |
| Context (input) | 256K | 256K |
| Context (output) | 64K | 128K |
| Input Price / 1M | $1.00 | $1.50 |
| Output Price / 1M | $4.00 | $6.00 |
| Average Score | 1.0 | 1.0 |
| Benchmarks | ||
| AIME 2025 | 1.0 | 1.0 |
Visual Benchmark Comparison
GPT-5.1 Medium
GPT-5.2
AIME 20251.0 vs 1.0
1.0
1.0
Verdict
Both models show equal results — the choice depends on your specific use case.
Overall Performance
Both models show comparable average scores: GPT-5.1 Medium — 1.0, GPT-5.2 — 1.0.
API Cost
GPT-5.1 Medium is 1.5x cheaper: input $1.00/1M vs $1.50/1M tokens.
Context Window
Same context size: 256K tokens.
Recency
GPT-5.2 is newer: released 12/10/2025 vs 11/11/2025.
More About These Models
Related Comparisons
The GPT-5.1 Medium and GPT-5.2 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 GPT-5.2 page. See also the complete list of AI model comparisons.