head to head
Among Us asks more than Codenames, and the gap is variance.

Reads · Pure Mind Games
A social deduction party game where crewmates vote out hidden impostors between chores.

Reads · Pure Mind Games
A team word game about predicting how partners will read your clues.
Among Us leans Reads (Pure Mind Games); Codenames leans Reads (Pure Mind Games).
Among Us leans a little harder on execution, though the gap is small.
Among Us
Tasks are trivial minigames
Codenames
No physical skill in giving word clues
Among Us leans clearly harder on reads.
Among Us
Lying to and reading humans IS the game
Codenames
Modeling how teammates interpret your clues is the game
Among Us leans clearly harder on variance.
Among Us
Role assignment and kill information hidden
Codenames
The fixed board adds little randomness mid-game
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Among Us
Task routes and vent logic give small edges
Codenames
Some clue-efficiency math underlies the prediction
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.