xAI released Grok 4.3, improving cost/performance with a 53 Intelligence Index score, 4 points higher than Grok 4.20, and significant gains on GDPval-AA and τ²-Bench Telecom. However, accuracy tradeoffs raised reliability concerns. Community opinions are mixed, with some praising token-efficiency and others noting regressions and pricing concerns. DeepSeek V4 Pro emerges as a leading open-weight coding/agent model, comparable to Codex and Claude Code, featuring a 1M context window and efficient attention mechanisms.

Benchmarking shows open-weight models like Kimi K2.6, MiMo V2.5 Pro, and DeepSeek V4 Pro closing the gap with closed models such as Gemini 3.1 Pro Preview, Claude Opus 4.7, and GPT-5.5. DeepSeek's multimodal efforts focus on explicit spatial grounding with a novel "point while thinking" approach using DeepSeek-ViT and CSA compression.