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Tibo
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Tibo

Index Rank127

1 Tool · 19 Intel

Thibault Sottiaux is a Belgian software engineer and product leader at OpenAI, where he leads Codex, the company's agentic coding tool, in a role that has expanded to oversee ChatGPT and core product efforts. He holds a degree in computational and applied mathematics from the Université catholique de Louvain in Belgium and is based in San Francisco.

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Tools

Codex Security(github.com/openai/codex-security)

CLI and TypeScript SDK from OpenAI that scans codebases for security vulnerabilities using Codex models.

CybersecurityVulnerability Scanning10.7kApache-2.0built by @thsottiaux

Intel

OpenAI reset usage limits for all Codex and ChatGPT Work users after a near-global outage in the early hours of the morning.

Otherbuilt by @thsottiaux

OpenAI is reinstating the 5-hour rolling window on Plus accounts for ChatGPT Work and Codex, to smooth compute load and stop newer users burning a full week of quota in a single session. Pro $100 and Pro $200 subscriptions stay exempt for the upcoming months.

AI Toolsbuilt by @thsottiaux

OpenAI has begun shipping GPT-6 Astra, staged over several days as new serving infrastructure comes online. Access lands on Plus in addition to Pro, Business and Enterprise, so the tier gate is lower than recent frontier launches. Expect uneven availability until the rollout finishes.

AI Toolsbuilt by @thsottiaux

An OpenAI engineer documents the exact Codex config keys for running GPT-5.6 Sol at a one-million-token window, plus a single-session CLI override, with a warning that the shipped default was tuned deliberately for cost and performance.

Developer Toolsbuilt by @thsottiaux

OpenAI resets paid Codex and ChatGPT Work usage and enumerates the bugs that were quietly eating allowances: images kept through compaction, Stop-hook-trapped memory workers, /goal running past its stop condition, over-frequent automations, and subagents escalating to pricier models.

Developer Toolsbuilt by @thsottiaux

OpenAI's Tibo Sottiaux spells out how Codex subscription multipliers are metered: the Pro tier's 20X is a weekly quota multiple of Plus, and neither Codex Pro plan enforces a rolling five-hour cap. Relevant context if you are comparing coding-agent plans on throughput.

AI Toolsbuilt by @thsottiaux

OpenAI traces faster Codex quota drain to specific causes: degraded prompt-cache hit rates, inefficiency with images in long sessions that compact repeatedly, high p95 Computer History usage, and a conversation-title feature burning more than intended. Fixes shipped alongside a full reset for paid p

AI Toolsbuilt by @thsottiaux

OpenAI adds a team-oriented tier alongside the $100 Pro plan: full Codex and ChatGPT Work access, Workspace/Slack/GitHub/M365 connectors, SAML SSO and MFA, centralized billing, usage analytics and spend controls, and no five-hour limit.

AI Toolsbuilt by @thsottiaux

OpenAI is pausing new sign-ups for its $200/month Pro plan, which grants access to GPT-6 Astra, due to system strain, while leaving other plans, the API, and existing Pro accounts untouched.

AI Toolsbuilt by @thsottiaux

OpenAI opened its Agents API, the same Codex-harness infrastructure behind ChatGPT Work, letting developers spin up scaled cloud agents with custom tools and sandboxes in under a minute.

AI Agentsbuilt by @thsottiaux

OpenAI is ending its partnership with Cursor and cutting off model access on November 12, citing trust. Own-API-key usage and OpenAI's IDE extensions remain supported paths, and the company says it will keep working with other harnesses.

AI Toolsbuilt by @thsottiaux

OpenAI previews Private Safety Processing: for Zero Data Retention customers, safety pattern-matching runs on infrastructure the customer controls and returns only limited signals, leaving prompts and responses unexposed to OpenAI employees. A hosted option with customer-controlled keys starts rolli

Cybersecuritybuilt by @thsottiaux

An argument that a token is not a standard unit: identical text costs different token counts on different tokenizers, so a cheaper per-token price can still produce a larger bill. One sample measured 766 tokens on GPT-5.6 Sol against roughly 1,170 for Claude Opus 5. Vendor-authored, so verify on you

AI Toolsbuilt by @thsottiaux

OpenAI is retiring GPT-5.3-Codex-Spark next week due to declining usage, pushing Codex users toward newer models.

AI Toolsbuilt by @thsottiaux

A Codex postmortem on destructive deletes: cleanup routines reused variables like $HOME and could target the real home directory, and temp paths were overwritten without checking contents. Fixes span explicit model instructions, execution-layer detection of high-risk delete commands, and making Full

AI Agentsbuilt by @thsottiaux

OpenAI's Codex lead says accounts reporting faster limit drain were largely running sub2api, converting subscription auth into resold API traffic, which trips fraud prevention. Signing in with ChatGPT from official or OSS clients such as Pi and OpenCode stays supported. Drain investigation ongoing.

AI Toolsbuilt by @thsottiaux

OpenAI's Tibo Sottiaux says paid ChatGPT subscribers accrue one banked usage reset for every day Astra is unavailable to them, counting from today, with the first credit landing in about three hours as the staggered rollout continues.

AI Toolsbuilt by @thsottiaux

An OpenAI employee lists several products shipping in the same week: Images 2.5, a live-voice model called GPT-Live-1, a new Agents API, a Data Agent, and ChatGPT for Financial Services, ahead of DevDay.

AI Agentsbuilt by @thsottiaux

Transparent-background image generation is now available for GPT-Image-2 in API preview and, according to an OpenAI engineer, in ChatGPT as well, making generated icons, stickers, and product assets directly compositable.

AI Toolsbuilt by @thsottiaux