GPT-5.1 Codex High vs K-EXAONE-236B-A23B: Specs & Benchmark Comparison
| Characteristic | GPT-5.1 Codex High | K-EXAONE-236B-A23B |
|---|---|---|
| Company | OpenAI | LG AI Research |
| Release Date | November 11, 2025 | December 30, 2025 |
| Parameters | — | 236B |
| Multimodal | Yes | No |
| Context (input) | 400K | 33K |
| Context (output) | 128K | 33K |
| Input Price / 1M | $1.25 | $0.60 |
| Output Price / 1M | $10.00 | $1.00 |
| Average Score | 1.0 | 0.8 |
| Benchmarks | ||
| AIME 2025 | 1.0 | 0.9 |
Visual Benchmark Comparison
GPT-5.1 Codex High
K-EXAONE-236B-A23B
AIME 20251.0 vs 0.9
1.0
0.9
Verdict
K-EXAONE-236B-A23B leads in 2 out of 4 comparison categories.
Overall Performance
Both models show comparable average scores: GPT-5.1 Codex High — 1.0, K-EXAONE-236B-A23B — 0.8.
API Cost
K-EXAONE-236B-A23B is 7.0x cheaper: input $0.60/1M vs $1.25/1M tokens.
Context Window
GPT-5.1 Codex High supports a larger context: 400K vs 33K tokens.
Recency
K-EXAONE-236B-A23B is newer: released 12/30/2025 vs 11/11/2025.
More About These Models
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The GPT-5.1 Codex High and K-EXAONE-236B-A23B 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 Codex High or K-EXAONE-236B-A23B page. See also the complete list of AI model comparisons.