The Age of Inference: Etched Startup Proves the Next AI Hotspot
The Age of Inference: Etched Startup Proves the Next AI Hotspot
Podcast27 min 23 sec
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Note: AI-generated summary based on third-party content. Not financial advice. Read more.
Quick Insights

As the AI market shifts from training models to 24/7 usage, investors should pivot focus toward Inference technologies, which are projected to account for 80% of AI compute demand by year-end. Broadcom (AVGO) is a top-tier public play for this trend, serving as the primary design partner for custom AI chips used by industry leaders like OpenAI. For those seeking a recovery play, Cerebras Systems (CBRS) offers high-speed inference architecture and may currently be mispriced following its recent 35% post-IPO decline. While NVIDIA (NVDA) remains dominant, its general-purpose GPUs face rising competition from specialized chips that offer up to 75% better power efficiency. To capture the entire ecosystem's growth, TSMC (TSM) remains the essential "pick and shovel" investment as the sole manufacturer for nearly all major AI chip designers.

Detailed Analysis

Etched (Private)

• Etched is a high-growth startup founded by Harvard dropouts focusing on "Inference" rather than the "Pre-training" of AI models. • They have developed a specialized chip architecture that is hard-coded for the Transformer architecture (the foundation of models like GPT-4 and Claude). • Efficiency Gains: While NVIDIA GPUs typically achieve only 30-40% utilization during inference, Etched claims their chips can reach nearly 100% efficiency. • Power Savings: By using lower voltage, their chips reportedly require 75% less power to achieve the same results as traditional hardware. • Market Traction: Despite being a young company, they have already secured over $1 billion in customer contracts and raised over $800 million in funding.

Takeaways

Vertical Integration Bet: The company is a "pure play" on the Transformer architecture. The primary risk is an "existential" one: if the industry moves away from Transformers to a new architecture, Etched's hard-coded chips would become obsolete. • Acquisition Target: Analysts suggest Etched is a prime acquisition target for "Frontier Labs" like Anthropic or OpenAI looking to vertically integrate their hardware and software stacks. • Speed as a Moat: Their ability to solve complex engineering problems (like synchronizing clock signals within 50 picoseconds) suggests a highly capable technical team that is out-pacing larger incumbents.


NVIDIA (NVDA)

• Currently the market leader with roughly 75% total chip share, but the transcript argues their GPUs are not actually optimized for inference. • The "Inference Gap": As AI shifts from training (one-time) to inference (24/7 usage), NVIDIA's general-purpose chips may face efficiency challenges compared to specialized ASICs (Application-Specific Integrated Circuits). • Strategic Response: NVIDIA is aware of this threat, evidenced by their acquisition of Grok (an inference-focused startup) for approximately $20 billion.

Takeaways

Dominance vs. Efficiency: While NVIDIA remains the "godfather of AI," their chips are described as "the only thing available" at scale right now. Investors should watch for a potential shift in market share as specialized inference chips from startups and cloud providers (Google/Amazon) become more available. • Sentiment: Neutral to Bullish, but with a warning that their "moat" in inference is thinner than their moat in training.


Broadcom (AVGO)

• Broadcom is highlighted as a key partner for major AI players. They recently helped OpenAI design their custom "Jalapeno" chip in just nine months. • They are positioned as the "design powerhouse" that enables software companies to build their own custom silicon.

Takeaways

The "Pick and Shovel" Play: For investors who cannot access private companies like Etched, Broadcom offers public exposure to the custom AI chip (ASIC) trend. • Strong Momentum: The transcript notes significant recent price action, identifying it as a way to play the success of custom chips being built by OpenAI and others.


Cerebras Systems (CBRS)

• A recently public company that competes directly in the high-speed inference space. • Like Etched, Cerebras focuses on serving tokens at extreme speeds and high efficiency.

Takeaways

Market Mispricing: The transcript notes that Cerebras stock has struggled since its IPO (down ~35%). However, the analysts suggest this may be a "mispricing" by the market, which doesn't yet realize that inference is the new moat.High-Volume Tokens: If the future of AI involves "agents" running 24/7, the demand for Cerebras’ high-token-output architecture could increase significantly.


Investment Theme: The Shift to Inference

The "Flip": Two years ago, AI compute was 2/3 training and 1/3 inference. That has now flipped. By the end of this year, inference is expected to account for 80% of AI compute demand. • The "Agent" Economy: As users move from simple prompts to "AI Agents" that work for days or weeks at a time, the cost of "burning tokens" becomes the primary economic hurdle for AI companies. • Longevity and Science: Faster inference isn't just about chat; it's about "accelerating longevity" and scientific research by allowing models to process millions of permutations in a fraction of the time.

Takeaways

Sector Focus: Investors should look beyond the "training" phase of AI and focus on companies optimizing for performance-per-watt and tokens-per-second. • Key Public Stocks mentioned for exposure: * Broadcom (AVGO): For custom chip design. * MediaTek: Mentioned as a designer of specific inference-related chips (up 180% year-to-date). * TSMC (TSM): The manufacturer for almost all these players, including Etched. * Amazon (AMZN) & Google (GOOGL): For their internal custom chips (Trainium and TPUs).

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Episode Description
Inference is becoming more important than pre-training in AI chips, including how pre-fill and decode work and why more compute is shifting toward serving models.  Today we walk through Etched’s ASIC system for transformer inference, its claims around efficiency and throughput, and the tradeoff between specialization and general-purpose GPUs like NVIDIA’s.  We also look at custom chip efforts from companies like OpenAI, Google, and Amazon, and argues that inference demand may keep growing as AI agents and long-running workloads expand. ------ 🌌 LIMITLESS HQ ⬇️ EMAIL US:           info@limitless.fm NEWSLETTER:    https://limitlessft.substack.com/ FOLLOW ON X:   https://x.com/LimitlessFT SPOTIFY:              https://open.spotify.com/show/5oV29YUL8AzzwXkxEXlRMQ APPLE:                 https://podcasts.apple.com/us/podcast/limitless-podcast/id1813210890 RSS FEED:           https://limitlessft.substack.com/ ------ TIMESTAMPS 0:00 Inference’s New Frontier 2:14 Training Versus Inference 5:19 Etched’s Bold Bet 7:58 Building the Whole Rack 10:48 TSMC and the Hard Problems 13:29 Why Inference Matters 14:59 The Transformer Risk 17:02 OpenAI’s Jalapeno Chip 18:59 Why Accelerators Keep Winning 22:28 The Market Is Underpricing It 23:10 NVIDIA Is Still in the Game 24:56 Vertical Integration Wins ------ RESOURCES Josh: https://x.com/JoshKale Ejaaz: https://x.com/cryptopunk7213 ------ Not financial or tax advice. See our investment disclosures here: https://www.bankless.com/disclosures⁠ Josh works with Anthropic as a contractor. All views expressed are his own and do not represent Anthropic, its leadership, or its affiliates. Nothing in this episode is investment advice.
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