Separate Qwen2 from Qwen3 implementation: - Qwen2: Uses QKV bias, no QK norm - Qwen3: Has optional QK norm when no bias Tested with Qwen2.5-7B-Instruct-1M, RULER niah_single_1 passed. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Separate Qwen2 from Qwen3 implementation: - Qwen2: Uses QKV bias, no QK norm - Qwen3: Has optional QK norm when no bias Tested with Qwen2.5-7B-Instruct-1M, RULER niah_single_1 passed. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>