E4

Speedster · Accelerator

F2
F1

Mercury 2.5

Inception

Mercury 2.5 imagined as a retro AI machineSpeedster
  • Intelligence12.3
  • Hallucination80%
  • Context260K
  • KnowledgeN/D
  • Speed818tok/s
  • Response3.8s
  • Price$0.38
  • Modalities2
F1 · SpeedsterReasoningSeason 2026
Play with this deck

Mercury 2.5

Inception · Built for raw tokens per second. The only cards that can beat the Super Trump.

F1 · Speedstercommon

Card stats

  • Intelligence ▲ higher wins

    Intelligence Index: a composite score from 10 hard evaluations covering reasoning, knowledge, coding, agents and science.

    12.3

    beats 16% of deck

  • Hallucination ▼ lower wins

    Hallucination rate: of the questions a model gets wrong, how often it confidently makes up an answer instead of saying it doesn't know. Lower wins.

    80 %

    beats 21% of deck

  • Context ▲ higher wins

    Context window: how many tokens of input the model can consider at once.

    260K

    beats 19% of deck

  • Knowledge ▲ higher wins

    Training-data cutoff: the most recent month the model learned about. Later wins. N/D means the lab hasn't disclosed it, and an N/D card loses this stat.

    N/D

    beats 16% of deck

  • Speed ▲ higher wins

    Median output speed in tokens per second, measured on the labs' own APIs.

    818 tok/s

    beats 100% of deck

  • Response ▼ lower wins

    End-to-end response time: seconds to receive a 500-token answer, thinking time included. Lower wins.

    3.8 s

    beats 100% of deck

  • Price ▼ lower wins

    Blended price per million tokens (3:1 input to output). Lower wins.

    $0.38

    beats 77% of deck

  • Modalities ▲ higher wins

    Number of supported input and output modalities: text, image, audio and video.

    2

    beats 8% of deck

Knowledge: The lab hasn’t published a training-data cutoff, so this card shows N/D and loses the Knowledge stat.

Model facts

Released
2026-09-08
Weights
Proprietary
Parameters
Undisclosed
Reasoning
Yes
Price in / out
$0.25 / $0.75 per 1M
Time to first token
3.21 s
Humanity’s Last Exam
11.8%
GPQA Diamond
—
SciCode
38.5%

Sources how we source the numbers