Observed Signal · Jul 26, 2026 · Interview · Source: Lennys Newsletter · Impact: 3/5 · Sentiment: Neutral
Anthropic PM Dianne Penn on token maxing and Claude
An interview with Dianne Penn, Head of Product for Anthropic’s AI Research and Labs teams, covering her role since joining Anthropic in 2023 as the company's first technical product manager. The conversation reviews Anthropic’s early growth, product milestones (shipping models from Claude 2 through Fable), how Claude improved at coding, features incubated by her team (Claude Code, MCP, Skills, tool/computer use, and reasoning), and the eval-driven development practices the team uses. The piece also touches on career background (prior work on Alexa at Amazon and fixed-income trading at JP Morgan Chase) and broader reflections on human judgment amid rapid AI progress.
Anthropic is a leading LLM developer and the interview details product-development decisions and shipped model/features (Claude series, Claude Code, MCP, Skills) that influence the capabilities available to downstream AI integrations in MarTech and AdTech.
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Key Takeaways & Evidence Grounding
- Dianne Penn is Head of Product for Anthropic’s AI Research and Labs teams.
- She joined Anthropic in 2023 as the company's first technical product manager when the product team was five engineers.
- She helped ship Anthropic models from Claude 2 through Fable and incubated features including Claude Code, MCP, Skills, computer use, tool use, and reasoning.
- Before Anthropic, she worked on Alexa's AI at Amazon and previously traded high-yield bonds at JP Morgan Chase.
- The interview was published on Lenny's Newsletter on 2026-07-26.
Connected Companies & Entities
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Anthropic's Claude Grows from $1B to $19B ARR
Amol Avasare, Head of Growth at Anthropic, describes an unusually rapid expansion for Anthropic and its Claude product—reporting growth from $1 billion to over $19 billion in ARR within 14 months. The interview outlines how Anthropic uses Claude itself to automate growth experiments (an internal tool called “CASH”), emphasizes activation as a top growth lever for AI products, and favors a 70/30 allocation toward big bets rather than many small experiments. Avasare also discusses organizational practices—suggesting PM-to-engineer ratios may need to shift, using Claude Cowork to detect Slack misalignment, and how the company’s focus on AI coding generated a research flywheel that accelerated model development. The piece includes personal background on Avasare (previous roles at Mercury and MasterClass and a traumatic brain injury) and references related Anthropic products like Claude Code and Claude Cowork.
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Fiona Fung, Head of Engineering for Claude Code and Cowork at Anthropic, describes how AI is reshaping engineering organization, workflows and productivity. Drawing on 25+ years of engineering experience including 11 years at Microsoft (Visual Studio, TypeScript) and product leadership at Meta (including founding Facebook Marketplace and work on AR glasses and Instagram infrastructure), Fung discusses running teams that now ship substantially more code, which roles AI will transform, specific ways her teams use Claude and Cowork, and managerial changes driven by Claude “routines.” The piece highlights operational gains (Anthropic engineers reportedly ship ~8x more code per quarter versus 2021–2025) and surfaces unresolved challenges such as context-switching and the broader unsolved problems in AI.
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