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OpenAI

OpenAI

Develops safe AI models and tools

Researcher - Robustness & Safety Training

Full-Time
$295k - $445k/yr
Mid
PhD
London, UK+1 more

More locations: San Francisco, CA, USA

In Person

About the job

Requirements
  • At least 4 years of experience in AI safety, especially in reinforcement learning from human feedback, adversarial training, robustness, fairness, and biases.
  • A Ph.D. or other degree in computer science, machine learning, or a related field.
  • Experience in safety work for AI model deployment.
  • An in-depth understanding of deep learning research and/or strong engineering skills.
Responsibilities
  • Conduct state-of-the-art research on AI safety topics such as reinforcement learning from human feedback, adversarial training, and robustness.
  • Implement new methods in core model training and launch safety improvements in products.
  • Set research directions and strategies to make AI systems safer, more aligned, and more robust.
  • Coordinate and collaborate with cross-functional teams, including trust and safety, legal, policy, and other research teams, to ensure products meet safety standards.
  • Evaluate and understand the safety of models and systems, identify areas of risk, and propose mitigation strategies.

About the company

OpenAI conducts AI research and deployment to build advanced AI models and tools that help people automate tasks, be more creative, and make better decisions. Its products include ChatGPT, a conversational AI that can write, code, tutor, and assist in interactive tasks, and Sora, which can generate videos from text prompts. OpenAI’s models typically run through cloud-based services and subscriptions, with licensing and partnerships for broader use. The company operates a capped-profit model to balance generating revenue with ensuring safety, ethics, and long-term societal benefits. Its approach emphasizes safety, responsible deployment, and collaboration with researchers, governments, and institutions. The goal is to ensure artificial general intelligence, when it arrives, benefits all of humanity and minimizes risks.

Company Size

10,001+

Company Stage

Private

Total Funding

$196.5B

Headquarters

San Francisco, California

Founded

2015

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Simplify's Take

What believers are saying

  • OpenAI says revenue hit $2 billion monthly, with enterprise above 40%.
  • August 2026 ChatGPT for Teens and Images 2.5 expand monetizable product lines.
  • Nvidia’s August 2026 $105 billion Ohio backing secures OpenAI’s compute buildout.

What critics are saying

  • September 5, 2026 lawsuits from Seattle Times and Newsday target training datasets and models.
  • Apple and New York Times litigation threatens discovery, injunctions, and forced retraining.
  • A court loss on copyright or trade secrets would freeze releases and damage the 2027 IPO.

What makes OpenAI unique

  • March 31, 2026 funding gave OpenAI $122 billion and an $852 billion valuation.
  • OpenAI’s Jalapeño chip program with Broadcom cuts inference costs versus Nvidia GPUs.
  • ChatGPT’s consumer brand funnels directly into enterprise adoption and workflow expansion.

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Benefits

Health insurance

Dental and vision insurance

Flexible spending account for healthcare and dependent care

Mental healthcare service

Fertility treatment coverage

401(k) with generous matching

20-week paid parental leave

Life insurance (complimentary)

AD&D insurance (complimentary)

Short-term/long-term disability insurance (complimentary)

Optional buy-up life insurance

Flexible work hours and unlimited paid time off (we encourage 4+ weeks per year)

Annual learning & development stipend

Regular team happy hours and outings

Daily catered lunch and dinner

Travel to domestic conferences

Growth & Insights and Company News

Headcount

6 month growth

5%

1 year growth

0%

2 year growth

4%
PR Newswire
Sep 21st, 2026
Quartile partners with OpenAI to bring AI-powered ad optimisation to ChatGPT's 1B weekly users

Quartile has become a technology partner supporting advertising in ChatGPT, expanding its retail media optimisation capabilities into conversational AI. The partnership allows participating advertisers to access ChatGPT advertising through Quartile's existing tools and workflows. ChatGPT features clearly labelled ads that are visually distinct from responses, which remain uninfluenced by advertisements. The platform has more than one billion weekly active users. The expansion reflects Quartile's "experts + AI approach", combining automation and data with strategic expertise from advertising professionals. CEO Daniel Knijnik stated that whilst AI creates new product discovery methods, technology alone doesn't create successful advertising strategies. Quartile supports thousands of brands and manages billions of dollars in annual advertising spend across major commerce and digital advertising channels.

Yahoo Finance
Sep 18th, 2026
OpenAI launches sponsored agents in ChatGPT ads with HubSpot and Shopify integrations

OpenAI launched Sponsored Agents this week, enabling users to start conversations with business-sponsored agents after clicking ChatGPT ads. HubSpot joined as the first CRM integration, allowing sales teams to follow up after conversations end, whilst Shopify became the first e-commerce partner. The development represents a shift towards automated ad systems that operate as background infrastructure, monitoring business KPIs and adjusting ad pipelines in real time rather than through dashboards. This is driving marketers to migrate spending towards highly automated platforms like Google Performance Max and Meta Advantage+. Amazon, Google, and Meta now control 58% of the US advertising market, up from 56% a year earlier, according to Madison & Wall estimates. These three companies captured disproportionate market growth, whilst other companies combined fell from 47% to 43%.

Yahoo Finance
Sep 18th, 2026
AI labs must hit $180B revenue run rate by year-end to justify trillion-dollar capex buildout, says Nvidia investor

Brad Gerstner, founder of Altimeter Capital, says leading AI labs must increase their combined annual revenue from roughly $100 billion to at least $180 billion by year-end to sustain the AI trade. Speaking at the All-In Summit, he called AI lab revenue "the single most important data point in the market today." Gerstner estimates that Anthropic, OpenAI, and xAI had a combined run rate of approximately $100 billion in July. The revenue growth is needed to support massive infrastructure spending by Microsoft and Alphabet, who are building computing capacity that AI labs rent. Altimeter held 9.41 million Nvidia shares worth $1.88 billion at 30 June, representing about 19% of its US equity portfolio. The firm also holds stakes in Anthropic and OpenAI.

Yahoo Finance
Sep 18th, 2026
OpenAI's $1.2T valuation signals AI boom still has legs, says Macquarie

Microsoft-backed OpenAI is reportedly raising funds at a valuation of up to $1.2 trillion, according to Macquarie analysts. This would place it above rival Anthropic, recently valued at roughly $965 billion. The funding discussions follow a rebound in OpenAI's commercial momentum, with annual recurring revenue reportedly doubling to $40 billion earlier this year. Macquarie analysts Paul Golding and Alex Luthringer said the GPT-5.6 and Astra releases demonstrate that improved model performance continues driving enterprise and consumer adoption. Macquarie views this development as supportive for SoftBank, which holds significant exposure to OpenAI and controls chip designer Arm. The bank maintains an Outperform rating on SoftBank, citing validation of its broader AI strategy spanning infrastructure, data centres, and robotics.

The Information
Sep 17th, 2026
Cooley and OpenAI launch GO Public tool to draft S-1 SEC filings

Law firm Cooley has partnered with OpenAI to launch GO Public, a tool designed to draft S-1 filings — documents companies must submit to the Securities and Exchange Commission before going public. The announcement was made on Thursday. Cooley lawyers can use prompts to operate GO Public, which has access to the firm's resources. The tool aims to streamline the preparation of regulatory filings required for initial public offerings.