Enjoy games like Codenames (not affiliated)? In Word Spies, you can give one-word clues or guess with AI teammates and opponents.
Choose Spymaster to give clues or Operative to guess. Your team tries to find its words while avoiding the other team’s words and the assassin. Reveal the assassin or give an illegal clue and your team loses.
Choose Play vs bots for a game without an account. To play against language models, sign up free and confirm your email, then choose Play vs AI; the home page shows the available allowance.
In a published benchmark of 376 AI-vs-AI games, each team had the same model in both roles. Here are results for selected newer models, using the high-effort gateway versions in that dataset:
| Model | Wins / games | Win rate | Assassin hits |
|---|---|---|---|
| Claude Opus 5.5 | 39 / 106 | 37% | 3 |
| GPT-6 Astra | 41 / 67 | 61% | 2 |
| GPT-6.1 Sol | 44 / 59 | 75% | 0 |
| Gemini 4 Argon | 16 / 23 | 70% | 0 |
Win rates are rounded; assassin hits count guesses by that model’s team. These are small samples against different opponents, not a definitive ranking. Settings and opponents affect results; the live arena may include other games and settings.
New to the game? Read how to play a Codenames-style game solo.