Terminal-Bench 3.0

Firmware Patch BackdoorSecurity & Forensics

How each model performed on this task. Every chart states its N, and the reward carries a 95% confidence interval once there is more than one trial to measure.

Core metrics

Avg Cost

Mean API spend across trials; the line under a value is its observed range. N = 8 trials per model.

  1. $0.73$0.62–$0.87

    Opus-4.8

  2. $0.27$0.17–$0.44

    GPT-5.4

  3. $0.03$0.02–$0.07

    Gemini-3

Extended metrics

Median Time

Wall-clock minutes, median across trials. N = 8 trials per model.

  1. 4m

    Opus-4.8

  2. 1m

    GPT-5.4

  3. 0m

    Gemini-3

What the reward cost on this task

Reward vs Cost

Mean reward against mean spend per trial — top-left is more reward for less.

  • Opus-4.8
  • Gemini-3
  • GPT-5.4

$0.03Cost / trial$0.73