An independent evaluation using the Ante 0.preview.71 harness confirms that DeepSeek V4 Flash 0731 achieves an 82.7% accuracy score on Terminal-Bench 2.1, matching DeepSeek's previously reported results.

  • The run consisted of 445 trials across 89 tasks with 5 trials per task and maximum reasoning effort.
  • The model achieved 368 successful trials out of 445, yielding an accuracy of 82.7% (±1.79 SE).
  • The evaluation used the `deepseek/deepseek-v4-flash-0731` model via OpenRouter with no skills enabled.
  • All configuration and trial records are publicly available in a Harbor job for verification.

The results demonstrate that DeepSeek V4 Flash 0731's performance is sensitive to the evaluation harness, providing useful data for benchmarking.