Grok 4.5 is legit. On par with GPT-5.5 honestly.
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don't use xAI OAuth for Grok-4.5
supergrok via grok cli has a lower rate multiplier and comes with $200/mo in credits

$30 a month for unlimited grok-4.5?
India grok deal is back. 3 months Heavy, $100. I've heard Heavy has unlimited usage. Haven't tried it myself though, so I can't say for sure. If you use grok-4.5 a lot, Heavy is a no-brainer.

Meituan shipped LongCat-2.5
. 1.6T params, ~48B active, native multimodal, aimed at long-horizon agents, trained start to finish on Chinese hardware. Images get quantized into multi-level discrete tokens, and that's where Visual Coding and 3D pick up. On the RL side, failed trajectories get turned back into verifiable training tasks. W4A4 inference, 43% faster prefill. Meituan's own evals put it between Claude Opus 4.8 and Opus 5.

SenseTime open-sourced SenseNova Loop-9B-Preview.
It stacks layers instead of parameters. The decoder has 32 layers, but layers 4 through 27 run twice with shared weights, so a forward pass does 56 layers of work while the checkpoint stays at 9B. Their own eval numbers: 71.38 on BIRD-Dev and 13.72 on AutomationBench, both above Qwen3.5-27B. Terminal Bench is still behind.
