Head-to-head
DeepSeek V4.1 Flash vs GPT-5.6 Terra
As of October 26, 2026, DeepSeek V4.1 Flash leads GPT-5.6 Terra on the Analyzer Index, 81.5 to 80.6.
Normalized scores are min-maxed per benchmark across all models we track (0–100). Open the interactive compare view to add benchmarks to the radar chart or pull in more models.
DeepSeek V4.1 Flash
DeepSeekGPT-5.6 Terra
OpenAI| At a glance | DeepSeek V4.1 Flash | GPT-5.6 Terra |
|---|---|---|
| Analyzer Index | 81.5 (6/13) | 80.6 (6/13) |
| Blended price | $0.27/M | $2.25/M |
| Cheapest host | $0.11/M | maker's API |
| Context | 1.0M | 1.1M |
| Output speed | 137 tok/s | — |
| Time to first token | 1.04 s | — |
| Benchmark | DeepSeek V4.1 Flash | GPT-5.6 Terra |
|---|---|---|
Chatbot Arena Elo Arena | ||
Output Speed Speed | — | |
Time to First Token TTFT | — | |
Rolling Contamination-Controlled Average Rolling Avg | ||
Rolling Data Analysis Data Analysis | ||
SimpleQA Verified SimpleQA | ||
OTIS Mock AIME 2024-2025 OTIS AIME | ||
ARC-AGI 2 ARC-AGI 2 | ||
Frontier Composite Frontier | ||
Output Stability Stability | — | |
Format Adherence Format | — | |
Recovery Rate Recovery | — | |
API Success Rate API OK | — | |
Safety Handling Safety | — |
Methodology matches the main AI Model Analyzer About page.