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      <title>Saksham Arora · Chimera</title>
      <link>https://saksham.digital/blog</link>
      <description>Last 10 notes on Saksham Arora · Chimera</description>
      <generator>Quartz -- quartz.jzhao.xyz</generator>
      <item>
    <title>Chimera</title>
    <link>https://saksham.digital/blog/</link>
    <guid>https://saksham.digital/blog/</guid>
    <description><![CDATA[ Saksham Arora reads AI model launches through the numbers and writes up the tools he builds. Data scientist, quant researcher and AI engineer. ]]></description>
    <pubDate>Sat, 10 Oct 2026 12:11:48 GMT</pubDate>
  </item><item>
    <title>Cache Locality</title>
    <link>https://saksham.digital/blog/wiki/cache-locality</link>
    <guid>https://saksham.digital/blog/wiki/cache-locality</guid>
    <description><![CDATA[ Summary Cache locality refers to how well a program’s memory access patterns exploit CPU cache hierarchy (L1/L2/L3). ]]></description>
    <pubDate>Sat, 10 Oct 2026 11:55:04 GMT</pubDate>
  </item><item>
    <title>C++ Systems Programming</title>
    <link>https://saksham.digital/blog/wiki/cpp-systems-programming</link>
    <guid>https://saksham.digital/blog/wiki/cpp-systems-programming</guid>
    <description><![CDATA[ Summary Systems programming in C++ focuses on writing code that interacts closely with hardware: manual memory management, cache-aware data structures, lock-free concurrency, and zero-overhead abstractions. ]]></description>
    <pubDate>Sat, 10 Oct 2026 11:55:04 GMT</pubDate>
  </item><item>
    <title>HFT Matching Engine: Build Log and Lessons</title>
    <link>https://saksham.digital/blog/wiki/hft-matching-engine</link>
    <guid>https://saksham.digital/blog/wiki/hft-matching-engine</guid>
    <description><![CDATA[ Summary Built a limit order book matching engine in C++ across three architecture iterations, going from 823K to 2.72M orders/sec (3.3x throughput) and 27.4μs to 3.1μs p999 latency (8.8x tail improvement). ]]></description>
    <pubDate>Sat, 10 Oct 2026 11:55:04 GMT</pubDate>
  </item><item>
    <title>Wiki</title>
    <link>https://saksham.digital/blog/wiki/</link>
    <guid>https://saksham.digital/blog/wiki/</guid>
    <description><![CDATA[ Short reference notes on the systems ideas behind my matching engine. Each one is a page I wished existed when I was stuck. ]]></description>
    <pubDate>Sat, 10 Oct 2026 11:55:04 GMT</pubDate>
  </item><item>
    <title>Order Book Design</title>
    <link>https://saksham.digital/blog/wiki/order-book-design</link>
    <guid>https://saksham.digital/blog/wiki/order-book-design</guid>
    <description><![CDATA[ Summary A limit order book (LOB) maintains sorted lists of buy (bid) and sell (ask) orders at each price level. ]]></description>
    <pubDate>Sat, 10 Oct 2026 11:55:04 GMT</pubDate>
  </item><item>
    <title>Jane Street Tried Diffusion on Market Data and 88% of the Samples Blew Past 8 Sigma</title>
    <link>https://saksham.digital/blog/24_diffusion_cant_fake_a_tick_yet</link>
    <guid>https://saksham.digital/blog/24_diffusion_cant_fake_a_tick_yet</guid>
    <description><![CDATA[ Jane Street just published a writeup on generating synthetic order book events with autoregressive diffusion. ]]></description>
    <pubDate>Sat, 10 Oct 2026 00:00:00 GMT</pubDate>
  </item><item>
    <title>Gemini 4 Argon Costs the Same Per Token and Twice Per Task</title>
    <link>https://saksham.digital/blog/23_gemini_4_argon_same_price_twice_the_bill</link>
    <guid>https://saksham.digital/blog/23_gemini_4_argon_same_price_twice_the_bill</guid>
    <description><![CDATA[ Google launched Gemini 4 Argon yesterday at 2 in and 10 out per million tokens, the exact same list price as GPT-6 Sol. ]]></description>
    <pubDate>Thu, 01 Oct 2026 00:00:00 GMT</pubDate>
  </item><item>
    <title>The Lecturer&#039;s Head Was a Slide</title>
    <link>https://saksham.digital/blog/22_the_lecturers_head_was_a_slide</link>
    <guid>https://saksham.digital/blog/22_the_lecturers_head_was_a_slide</guid>
    <description><![CDATA[ I watch lectures at 1.75x and I do not take notes. ]]></description>
    <pubDate>Wed, 30 Sep 2026 00:00:00 GMT</pubDate>
  </item><item>
    <title>Ember-1 Cut 40% of the Tokens and Kept the Score</title>
    <link>https://saksham.digital/blog/21_ember_1_cut_40_percent_of_the_tokens</link>
    <guid>https://saksham.digital/blog/21_ember_1_cut_40_percent_of_the_tokens</guid>
    <description><![CDATA[ Fireworks shipped Ember-1 on September 23: a post-trained Kimi K3 that uses about 40% fewer tokens for the same work. ]]></description>
    <pubDate>Mon, 28 Sep 2026 00:00:00 GMT</pubDate>
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