Composer 2 vs Hy3 Preview

Pick Composer 2 if you want the stronger benchmark profile. Hy3 Preview only becomes the better choice if coding is the priority or you want the cheaper token bill.

Composer 2 is clearly ahead on the provisional aggregate, 73 to 62. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Composer 2's sharpest advantage is in agentic, where it averages 61.7 against 54.4. The single biggest benchmark swing on the page is Terminal-Bench 2.0, 61.7% to 54.4%. Hy3 Preview does hit back in coding, so the answer changes if that is the part of the workload you care about most.

Composer 2 is also the more expensive model on tokens at $0.50 input / $2.50 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Hy3 Preview. That is roughly Infinityx on output cost alone. Hy3 Preview gives you the larger context window at 256K, compared with 200K for Composer 2.