Qwen3.5 9B
Alibaba · open weights · released 2026-02-23 · route qwen3.5:9b · Model profile
Opening gap: +97 (95%: -845 to +1,039). The interval includes zero, so we can't yet say whether it performs differently across the variants.
Standard
- Rating
- 80995%: 110 to 1,509
- Record
- 0 won, 0 drawn, 1 lost of 1
- Accuracy (open positions)
- 92.8
- Accuracy (all moves)
- 92.8
- Average centipawn loss
- 18
- Blunders / mistakes / inaccuracies per 100 moves
- 0.0 / 0.0 / 0.0
- Matched Stockfish's first choice
- 0%
- In Stockfish's top three
- 100%
- Legal on the first try
- 66.7%
- Illegal / invalid
- 3 of 5 answers
- Forfeits
- 1
- Adjudicated games
- 0
- API-equivalent cost per game
- n/a
- API-equivalent cost per move
- n/a
- Seconds per move
- 109.3
- Model minutes per game
- 5.5
- Tokens per move (in / out)
- 1,226 / 1,055
- Reasoning tokens per move
- n/a
- Aborted on our side (not counted)
- 0
By phase
| Phase | Moves | Accuracy | Centipawn loss | Blunders /100 | Engine match |
|---|---|---|---|---|---|
| Opening | 2 | 92.8 | 18 | 0.0 | 0% |
| Middlegame | 0 | n/a | n/a | n/a | n/a |
| Endgame | 0 | n/a | n/a | n/a | n/a |
Chess960
- Rating
- 71395%: 82 to 1,343
- Record
- 0 won, 0 drawn, 2 lost of 2
- Accuracy (open positions)
- 92.5
- Accuracy (all moves)
- 92.5
- Average centipawn loss
- 19
- Blunders / mistakes / inaccuracies per 100 moves
- 0.0 / 0.0 / 0.0
- Matched Stockfish's first choice
- 0%
- In Stockfish's top three
- 0%
- Legal on the first try
- 0.0%
- Illegal / invalid
- 8 of 9 answers
- Forfeits
- 2
- Adjudicated games
- 0
- API-equivalent cost per game
- n/a
- API-equivalent cost per move
- n/a
- Seconds per move
- 281.9
- Model minutes per game
- 7.0
- Tokens per move (in / out)
- 2,133 / 2,512
- Reasoning tokens per move
- n/a
- Aborted on our side (not counted)
- 0
By phase
| Phase | Moves | Accuracy | Centipawn loss | Blunders /100 | Engine match |
|---|---|---|---|---|---|
| Opening | 1 | 92.5 | 19 | 0.0 | 0% |
| Middlegame | 0 | n/a | n/a | n/a | n/a |
| Endgame | 0 | n/a | n/a | n/a | n/a |