The Builder's Radar
Connecting builders & tracking AI frontier
USA vs China
dev metrics · updated 27 Sep 2026 · click a row to fly ·
Global inference share · 28d tokens
US models · OpenRouter 28d
CN models · MiMo-V2.5 #1 (10.5T/wk)
Two of every three LLM calls worldwide run Chinese models — and the global top 5 by volume is 100% China: MiMo · DeepSeek · Tencent HY3 · GLM · Qwen.→ CHINA
Frontier training run · public cost
US runs · Grok 4 ≈ $388M (Epoch)
MiMo-V2.6 · RL phase (live log)
Xiaomi's entire livestreamed RL bill (Pro + Flash) is ~1/30 of one US frontier run — scopes differ, the efficiency gap doesn't.→ CHINA
Flagship API cost · $/1M input tokens
GPT-6 Astra
DeepSeek V4 Pro
7.6x cheaper at the flagship tier — China keeps the floor under frontier pricing.→ CHINA
Value-tier API cost · $/1M input tokens
Gemini 3.8 Flash
MiMo-V2.6-Flash (Xiaomi)
5.4x under Google's fast tier — Xiaomi's 309B/15B MoE (MIT, 1M ctx) prices for volume, not margin.→ CHINA
Open-weight flagships · tracked
GPT-6 · Claude · Gemini closed
DeepSeek · Qwen · GLM open
Every tracked Chinese flagship ships open weights (MIT/Apache); all three US flagships stay closed.→ CHINA
Max flagship context window
GPT-6 Astra
DeepSeek V4 Pro
The context war ended in a ~1M tie — Astra edges it. RAG builders: both fit a mid-size codebase.→ USA
Consumer AI adoption · national stats
adults 18–64 · US RPS survey (Feb 2026)
share of population · CNNIC (Dec 2025)
Denominators shown on purpose (they differ by design): the US surveys working-age adults, China counts the whole country — 602M users, +141.7% in 12 months. Comparable evidence: US leads intensity, China leads velocity.→ USA
Latest LLM Releases
MiMo-V2.6 Pro · Flash
Xiaomi's omnimodal MoE pair ships open (MIT): Flash is 309B/15B active at $0.14/M input with 1M context.
DeepSeek V4.1 Flash
Newest Flash-tier open release — DeepSeek keeps compressing frontier quality into cheap, fast inference.
GPT-6 Astra
OpenAI's new flagship line, shipping alongside Astra Pro on day one.
Qwen3.8 Max (0902)
Alibaba refreshes its multimodal APAC flagship with the 0902 build.
Gemini 3.8 Flash
Google's fast multimodal tier steps to 3.8 — best price/perf in the Flash line.
Claude Fable 5.1 · Mythos 5.1
Anthropic's frontier agentic coding line gets a point release — Fable for work, Mythos at the ceiling.
GLM-5.3 Flash
Zhipu's self-hostable frontier flash — the fastest open challenger you can run yourself.
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