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AI Startup & AI Lab Interview Guides

related dataNew: our AI-Startup Interview Difficulty Index scores every company below from 1 to 5 on coding, system design, ML/research depth, take-home load, and speed — ranked hardest to easiest.

AI-native companies

AI-Native Company Interview Guides

Interview guides for the AI-native companies — the frontier labs and the startups building on them: OpenAI, Anthropic, Mistral, Cursor, Perplexity, Modal, Together AI and more. What each one actually tests: ML and systems depth, inference at scale, and shipping fast in hypergrowth.

74 company guides

AAbridgeAbridge is a Pittsburgh-based clinical AI company whose product listens to clinician-patient conversations and turns…

AAmbience HealthcareAmbience Healthcare is a San Francisco company selling ambient AI documentation, point-of-care coding, and clinical…

AAnthropicrelated dataOn our AI-Startup Interview Difficulty Index, Anthropic ranks 13th of 32 (3.4 out of…

AAssort HealthAssort Health builds specialty-specific AI voice agents that answer the phones at orthopedic, dermatology, urology…

BBasetenBaseten is a San Francisco AI inference company that helps teams deploy and serve ML…

BBlack Forest LabsBlack Forest Labs interviews screen for deep expertise in diffusion and flow-matching models, generative image…

CCartesiaCartesia builds real-time voice AI on state space models, so its interviews reward people who…

CCharacter.AICharacter.AI hires through a multi-stage loop that begins with a recruiter screen, moves to a…

CCohereCohere interviews center on enterprise AI: expect to show you can build and ship real…

CCommureCommure is a General Catalyst-built healthcare operations company selling ambient clinical documentation, AI billing and…

CContextual AIContextual AI builds an enterprise platform for grounded, retrieval-augmented generation it markets as "RAG 2.0,"…

CCoreWeaveA CoreWeave interview tests the skills behind running GPU infrastructure at scale, so expect rounds…

CCrusoeCrusoe hires infrastructure-heavy engineers to build a GPU cloud that runs on power the company…

CCursorrelated dataOn our AI-Startup Interview Difficulty Index, Cursor ranks 3rd of 32 (4.0 out of…

DDagsterDagster Labs ran a compact, practical loop: a recruiter chat, a technical screen with a…

DDecagonDecagon interviews focus on whether you can build and ship AI agents for customer support,…

DDeepgramDeepgram's interview process tests whether you can build and reason about production speech AI systems,…

EElevenLabsElevenLabs interviews test whether you can build and ship AI voice technology at production scale,…

EExaExa hires engineers who can build real search and retrieval systems, not recite textbook algorithms.…

FFactory AIFactory is a San Francisco company building autonomous coding agents called Droids for enterprise software…

Ffal.aifal (fal.ai) is a generative-media inference platform, so its engineering interviews lean toward GPU and…

FFireworks AIrelated dataOn our AI-Startup Interview Difficulty Index, Fireworks AI ranks 4th of 32 (4.0 out…

GGensparkGenspark is a fast-growing Palo Alto AI startup building an agent (its "Super Agent") that…

GGleanGlean's interview process runs through a recruiter screen, a technical phone screen, and a virtual…

HHarveyHarvey's interview process typically runs through a recruiter screen, one or more role-specific rounds, and…

HHippocratic AIHippocratic AI interviews center on building safe, non-diagnostic patient-facing healthcare LLM agents, so expect rounds…

HHugging FaceA Hugging Face interview tests whether you can build and ship real work with the…

IInfinitus SystemsInfinitus Systems builds voice AI agents that phone insurance payers, pharmacies, and providers on behalf…

LLangChainLangChain interviews test whether you can build production LLM applications rather than just call a…

LLegoraLegora is a Stockholm-based startup building collaborative AI for lawyers, and it competes head-on with…

LLiveKitLiveKit hires infrastructure engineers who can reason about realtime media and distributed systems, mostly in…

LLuma AILuma AI hires for a generative-video and 3D research lab, so the bar skews toward…

MMach IndustriesMach Industries runs a short, sometimes messy loop: a recruiter call, one to three technical…

MMagic.devMagic (magic.dev) is a small, secretive AI lab building frontier long-context code models, backed by…

MMercorMercor screens engineers on practical problem-solving over algorithm trivia: expect a recruiter screen, one or…

MMistral AIrelated dataOn our AI-Startup Interview Difficulty Index, Mistral AI ranks 5th of 32 (3.8 out…

MModalModal interviews test how well you reason about the systems the company actually builds —…

MMotherDuckMotherDuck interviews test your grasp of DuckDB-based analytics and its hybrid execution model, which splits…

OOpenAIrelated dataOn our AI-Startup Interview Difficulty Index, OpenAI ranks 2nd of 32 (4.2 out of…

OOpenEvidenceOpenEvidence is a Miami-based clinical AI search engine that answers physicians' questions with citations from…

OOpenRouterOpenRouter runs a unified API that routes requests across hundreds of models and providers, so…

OOxide ComputerOxide does not run a normal interview loop: you submit written "materials" (answers to eight…

PParallelParallel Web Systems builds web research and search APIs made for AI agents rather than…

PPerplexityPerplexity's interview process weighs product judgment as heavily as engineering, so you'll be evaluated on…

PPhysical IntelligencePhysical Intelligence (PI, or "π") builds foundation models for robots, so its bar centers on…

PPika LabsA Pika Labs interview centers on your ability to build and reason about generative video…

PPoolsidePoolside interviews skip the LeetCode gauntlet and test whether you can reason about training and…

PPrime IntellectPrime Intellect builds globally distributed AI training and a GPU compute marketplace, and it hires…

RReflection AIReflection AI is a frontier lab founded by ex-Google DeepMind researchers building autonomous coding agents…

RReka AIReka AI interviews focus on your ability to build and reason about multimodal models that…

RReplitReplit interviews center on practical, ship-it engineering: expect to write and run real code in…

RRilletRillet runs a compact, practical loop: recruiter screen, a hiring-manager conversation about backend systems you…

RRogoRogo hires engineers to build an AI analyst for finance, so expect a recruiter screen,…

RRunwayRunway's interview process typically moves through a recruiter screen, one or two role-specific technical or…

SSakana AIInterviewing at Sakana AI means showing you can do original AI research rather than just…

SSaronicSaronic runs a fairly standard startup loop: recruiter screen, hiring manager call, then technical rounds…

SScale AIScale AI's 2026 interview process focuses on three areas: designing LLM evaluation frameworks, building RLHF…

SShield AIShield AI runs a fairly classic five-stage loop: recruiter screen, hiring manager call, a C++-heavy…

SSierraSierra's interview process focuses on how well you can design, build, and reason about production…

SSkild AISkild AI builds a general-purpose robotics foundation model (the "Skild Brain") meant to run on…

SStability AIA Stability AI interview for generative image roles tests how deeply you understand diffusion models…

SSunoA Suno interview tests whether you can design and ship generative audio systems, pairing standard…

TTaktileTaktile is a Berlin- and New York-based decision platform for financial services that lets risk…

TTempus AIThe Tempus AI interview process moves from a recruiter screen through a technical or role-specific…

TTennrTennr is a New York healthcare-automation company that reads faxed referrals and orders with its…

TTensorWaveTensorWave runs an AI cloud built on AMD Instinct GPUs, such as the MI300X and…

TThe Browser CompanyThe Browser Company weights product taste, design sense, and craft as heavily as raw engineering,…

TTildeTilde (Tilde Research) is a tiny, Khosla-backed AI interpretability lab in Palo Alto hiring ML…

TTogether AITogether AI interviews focus on the engineering behind fast, cheap inference for open models, so…

TTurbopufferTurbopuffer is a small, profitable, hard-core database company (Rust, object storage, search engines) that hires…

TTwelve LabsTwelve Labs builds video understanding foundation models sold as an API: Marengo for video embeddings…

XxAIrelated dataOn our AI-Startup Interview Difficulty Index, xAI ranks 1st of 32 (4.4 out of…

XXBOWXBOW builds an autonomous AI system that finds and exploits software vulnerabilities, and in 2025…

YYugabyteYugabyte runs a recruiter screen, a hiring manager or tech screen, then four to five…

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