
Infra Architect @ ByteDance. Maintainer of @webpack @rspack_dev - creator of #ModuleFederation #auADHD #synesthesia own opinions.
San Jose, CA
Joined June 2018
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Please don’t use rspack, use rsbuild.
Only ever use rspack directly if you are porting off webpack.
Zack Jackson retweeted
After migration to @rspack_dev Rsbuild, then try Rstest as a replacement for Jest. This reuse your Rsbuild config making your test runner behavior closer to your build and has single source. You can delegate the task to the agent. Meaning the annoying works when doing migration like replacing jest references to rs, changing the mocks, rewriting snapshots, etc majority of these will be handled by your agent. Just make sure you install Rstest skills and the agent is doing loop.
Our average shard with jest in CI is around 11mins. Down to 2 mins with rstest. Its just fast!
Replying to @ScriptedAlchemy
When we migrated to rs over a year ago, rsbuild was way easier to migrate to. Couldn't imagine how verbose the rspack config would be.
Rising inference costs
BREAKING: American Express, $AXP, is laying off 5% of its employees, or 3,500 people, in an effort to contain rising costs.
The company's CEO says the cuts are part of an effort to make the company "more agile and efficient."
Insane just how hard opus mogged
Kimi K3.1 Pro launches at 4th on the Artificial Analysis Intelligence Index scoring 55, making large gains in agentic performance; it will be the leading open-weights model once its weights are published
@Kimi_Moonshot's new reasoning model gains 11 points over Kimi K3 (max, 44). It trails only Claude Opus 5.5 (max with fallback, 58), Claude Sonnet 5.5 (max with fallback, 56), and Muse Wonder Full (max, 56) on the Intelligence Index.
Once the weights for K3.1 Pro are released it will be the highest-scoring open weights model and the gap between the leading open weights and proprietary models on the Intelligence Index will narrow from 12 points to 3.
Key results:
➤ Large gains in agentic performance: Kimi K3.1 Pro scores 3rd on GDPval-AA with 1,846 Elo, up 312 Elo from Kimi K3, behind only Claude Opus 5.5 (1,866 Elo) and Muse Wonder Full (1,857 Elo). Kimi K3.1 Pro also achieves the highest score of any model on Terminal-Bench 4.0. K3.1 Pro scores 67%, up from 13% for Kimi K3 and ahead of Claude Sonnet 5.5 (64%). AutomationBench-AA, which tests agentic SaaS workflows, rises from 58% to 73%.
➤ Gains in other evals are more moderate: Humanity's Last Exam rises from 47% to 52%, CritPt from 23% to 25%, and SciCode from 59% to 61%. AA-Omniscience Index rises from 20 to 30, as the hallucination rate falls from 53% to 44% and accuracy rises from 48% to 51%.
➤ Cost per Task roughly equal to Kimi K3 at $1.98 per Task: K3.1 Pro uses 55K output tokens per Intelligence Index task, 14% more than Kimi K3 at 48K, while its first-party token prices are 33% lower.
Additional model details:
➤ Context window: 1M tokens.
➤ Size: 2.8T total, 104B active parameters
➤ Input modalities: Text and image
➤ Weights and license: Weights currently not published, Moonshot is expected to release the weights soon after launch
➤ Pricing: $2/$10/$0.20 per 1M input/output/cache hit tokens, 33% lower than Kimi K3 on all three rates.
Congratulations to the team at @Kimi_Moonshot on the release!
Zack Jackson retweeted
rsbuild-plugin-cloudflare v0.0.1
An experimental prototype that lets you run an rsbuild dev server inside workerd, and build apps that can be deployed with the cf cli. Built on the Vite plugin's internals
Try it out with your TanStack Start apps today
github.com/james-elicx/rsbui…
Debating rewriting Tracedecay into t3code. Half the features I built for orchestration already exist there.
Wow OpenAI feels unlimited today. I’m trying to burn my wife’s GPT resets with Astra and struggling to.
“reconnecting 3/5”















