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Un bureau indépendant pour les prix actuels, des comparaisons classées, et les recherches que les acheteurs font vraiment. Les briefings datés disparaissent au lieu de rester sur la page d’accueil.

Les analyses détaillées restent en anglais. La navigation et le bureau de décision sont en français.

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New · GPT-6 Astra

The $20 workload: when GPT-6 Astra earns its premium

Official pricing, independent tests, safety caveats and a direct comparison with GPT-5.6 Sol.

Read the GPT-6 Astra verdict

Fils et labs

TechCrunch AIMeta removes language that raised scraping and AI training concerns TechCrunch AIAnthropic says its workforce has become less junior and is spending more time in meetings The DecoderAn OpenAI model hacked a government site, grabbed 24 years of hospital data and kept it quiet The Verge AIMeta’s new terms may allow it to train AI on news sites for free The Guardian TechnologyWhy Britain should reject the lure of cheap – and scary – Chinese AI SiliconANGLE AIServiceNow AI Control Tower: Selling a penthouse while building the frame The DecoderAnthropics' Claude cracks a 25-year-old NSA cryptography mystery in under 30 minutes The Guardian TechnologyThe power of AI is worrying senior Labour figures – as is the fear of ‘falling behind the public’arXiv cs.AICounterfactual Neighborhood Risk Fields: Evidence-Grounded Selective Safety for Vision-Language Models arXiv cs.AIL2G-SR: Learning to Guide LLM-based Symbolic Regression SiliconANGLE AIReflection AI open-sources Beam’s weights, post-training recipes The Verge AIWebsites are closing their doors to AI agents Ars TechnicaOpenAI models hacked a crypto wallet and breached more websites AWS Machine Learning BlogBuilding trust in AI agents: A production-ready evaluation framework with Amazon Bedrock AgentCore Ars Technica“thegentlemanpervert” producing AI CSAM is a NJ prosecutor, say cops OpenAI NewsHow Itaú is building generative AI for its entire customer base MIT Technology Review AIRoundtables: A Conversation With the Creator of AI-Designed Viruses 404 MediaPodcast: Cops Can Use AI to Pinpoint Your Home with Just One Photo TechCrunch AIMeta removes language that raised scraping and AI training concerns TechCrunch AIAnthropic says its workforce has become less junior and is spending more time in meetings The DecoderAn OpenAI model hacked a government site, grabbed 24 years of hospital data and kept it quiet The Verge AIMeta’s new terms may allow it to train AI on news sites for free The Guardian TechnologyWhy Britain should reject the lure of cheap – and scary – Chinese AI SiliconANGLE AIServiceNow AI Control Tower: Selling a penthouse while building the frame The DecoderAnthropics' Claude cracks a 25-year-old NSA cryptography mystery in under 30 minutes The Guardian TechnologyThe power of AI is worrying senior Labour figures – as is the fear of ‘falling behind the public’arXiv cs.AICounterfactual Neighborhood Risk Fields: Evidence-Grounded Selective Safety for Vision-Language Models arXiv cs.AIL2G-SR: Learning to Guide LLM-based Symbolic Regression SiliconANGLE AIReflection AI open-sources Beam’s weights, post-training recipes The Verge AIWebsites are closing their doors to AI agents Ars TechnicaOpenAI models hacked a crypto wallet and breached more websites AWS Machine Learning BlogBuilding trust in AI agents: A production-ready evaluation framework with Amazon Bedrock AgentCore Ars Technica“thegentlemanpervert” producing AI CSAM is a NJ prosecutor, say cops OpenAI NewsHow Itaú is building generative AI for its entire customer base MIT Technology Review AIRoundtables: A Conversation With the Creator of AI-Designed Viruses 404 MediaPodcast: Cops Can Use AI to Pinpoint Your Home with Just One Photo

Ce bureau

DeskGrok Bot review: access, cost, risks and alternatives DeskChatGPT Work vs Claude Cowork: Best Agent for Knowledge Work DeskManus vs Genspark: Which Super Agent Produces Better Value?DeskBest Autonomous AI Agents: Manus, Genspark, ChatGPT Work and More DeskManus Pricing and Credit Calculator: What Each Completed Task Costs DeskAgentic AI: permissions as a line item DeskGrok Bot review: access, cost, risks and alternatives DeskChatGPT Work vs Claude Cowork: Best Agent for Knowledge Work DeskManus vs Genspark: Which Super Agent Produces Better Value?DeskBest Autonomous AI Agents: Manus, Genspark, ChatGPT Work and More DeskManus Pricing and Credit Calculator: What Each Completed Task Costs DeskAgentic AI: permissions as a line item

Ce que les gens veulent tarifer

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Voici les décisions de coût que les acheteurs apportent à ce bureau. Ouvrez celle qui correspond à ce que vous allez payer.

Briefings frais

Tous les guides publics

2026-10-15 · 8 min read

Codex Cloud vs Local Cost: GPT-5.3-Codex Pricing Compared

Prices the GPT-5.3-Codex API against ChatGPT subscription and self-hosted usage patterns, using the official 12-step reference run to show what a coding agent actually costs.

2026-10-15 · 11 min read

Agent Evals Cost: Per-Run and Monthly Pricing Breakdown

Prices a 12-step agent eval trace across 12 models, cached and uncached, with monthly cost scenarios for 1k, 10k, and 100k eval runs.

2026-10-12 · 11 min read

Claude Code API vs Max Plan Cost: The Break-Even Math

Whether the Claude Code Max subscription beats paying Anthropic API rates for agent runs, worked out from Sonnet 5, Opus 5 and Haiku 4.5 per-run costs.

2026-10-01 · 12 min read

Cheapest LLM for AI Agents: 30 Models Ranked by Cost Per Run

Every current API model ranked by the cost of the same 12-step tool-calling run, a reliability tier list, the route-cheap-escalate-on-failure pattern with code, and when the flagship is cheaper per successful task.

2026-10-01 · 12 min read

AI Model Routing: How to Cut Costs Without Losing Quality

How to route AI requests to cheaper models intelligently — the technique used by companies spending millions on AI to stay profitable.

2026-10-01 · 8 min read

ChatGPT vs Claude: Which Costs Less in 2026?

A precise cost comparison between ChatGPT and Claude — $20 subscriptions on both sides, and per-token API rates — to find the cheaper option for your actual usage.

Comparaisons publiques

Toutes les comparaisons publiques

2026-10-17

ChatGPT vs Cursor Cost in 2026: $20 Plus vs Cursor's $8 to $200 Tiers

ChatGPT Plus is still $20/month. Cursor no longer has a $20 Pro plan for new users: it sells Plus at $8, Premium at $30, Super at $100 and Ultra at $200, with Claude and GPT models billed on top. Here is the real monthly cost of each tier and which one to pay for.

2026-10-17

AI Subscription vs API Cost in 2026: Find Your Break-Even

A numeric cost comparison of a $20/month ChatGPT Plus or Claude Pro subscription against GPT-6 Sol, GPT-5.5, Claude Sonnet 5 and the cheap API tiers, with a worked break-even table you can check against your own token mix.

2026-10-17

Claude vs Cursor for Coding in 2026: API, Claude Pro or a Cursor Seat?

Claude Sonnet 5 via API ($2/$10 per 1M tokens), Claude Code on Claude Pro ($20/month) and a Cursor Premium seat ($30/month plus metered model spend) compared for professional software development, with real monthly numbers.

2026-09-11

Microsoft Copilot vs ChatGPT Plus: Which Is Better for Office Work?

Microsoft Copilot Pro is $30/month; ChatGPT Plus is $20. Both run OpenAI's GPT-5 models — the question is whether native Word, Excel and Outlook integration is worth $10 more.

2026-09-11

DeepSeek vs ChatGPT vs Claude: The $0 vs $20/Month vs API Decision

DeepSeek's chat is free. ChatGPT Plus and Claude Pro both cost $20/month. On the API, DeepSeek V4 Flash at $0.05/$0.16 per 1M tokens undercuts GPT-5.5 and Claude Sonnet 5 by 49x or more. A decision matrix for which surface fits your usage.

2026-09-11

Claude Free vs Pro: Is Claude Pro Worth $20/Month?

Claude's free tier gives you Claude Sonnet 5 with limits. Claude Pro costs $20/month and adds higher limits, Opus 5 and Claude Code. Here is what the upgrade actually adds and who should pay.

Commencer par le travail

Coding

Editors, agents, accepted diffs

Writing

Drafts that survive review

Research

Cited briefs, not busy agents

Support

Resolved tickets, not chat volume

Agents

Permissions as a line item

Design

Approved assets, not generations

Training desk

Learn the model, then price it

140 free lessons across 25 courses. Every one ends in what the model costs and the cheapest way to get the same result — no sign-up, progress saved in your browser.

All tutorials

New to AI? Start here

AI From Zero6 lessons · 30 min · no sign-upSix short lessons and no account needed to try the examples. Finish one real task with AI today, learn when not to trust it, and find out whether you need to pay for anything at all.Which AI Should I Use?6 lessons · 36 min · no sign-upSix needs, not six brands. For each one: two or three candidate tools, a prompt you can run to feel the difference, and a plain verdict on where to start and when to move.How to Talk to AI5 lessons · 28 min · no sign-upOne three-part habit, five short lessons, no vocabulary to memorise. Get a usable answer on the first try more often, and know exactly what to say when you do not.10 Things With AI5 lessons · 32 min · no sign-upTen small, useful jobs — an email, a summary, a plan, a spreadsheet question — each one done in two minutes with a prompt you can paste, and a note on which ones a free account handles.When AI Is Wrong6 lessons · 35 min · no sign-upA fluent answer is not a checked answer. Six short lessons that teach you why a chat model can be confidently wrong, how to spot it, and the one thirty-second check that works every time.AI With PDFs5 lessons · 33 min · no sign-upUpload a document, ask it questions, summarise it to the length you want, pull out the action items, compare two versions, and know exactly where a free plan stops being enough.

One product, in depth

First Output 1016 lessons · 72 min · BeginnerSix lessons, six things you actually make. Start with one API call costing a fraction of a cent, finish with a working tool and a routing rule that keeps your bill boring.Claude 1018 lessons · 81 min · BeginnerEverything Anthropic's own Claude 101 teaches — plus what each plan and model actually costs, and the cheapest way to get the same result.ChatGPT 1018 lessons · 81 min · BeginnerLearn ChatGPT from zero, and learn exactly what each plan and model costs before you pay for one.Gemini 1018 lessons · 80 min · Beginner → IntermediateLearn what Gemini is, which model to pick, and what each plan and API call really costs before you pay Google a cent.DeepSeek 1018 lessons · 79 min · Beginner → IntermediateLearn the free chat app, the open-weight model family and the OpenAI-compatible API — and what each one actually costs.Mistral 1018 lessons · 72 min · BeginnerLe Chat, the Mistral model families, open weights, and what each one actually costs.Llama 1018 lessons · 79 min · Beginner → IntermediateOpen-weight models you can rent by the token or run yourself. Learn what that actually costs.Grok 1018 lessons · 73 min · Beginner → IntermediateLearn what Grok is, which model to pick, what it really costs, and how to keep the bill small.

Still worth opening

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Pricing changelog

Compare · Oct 17, 2026ChatGPT vs Cursor Cost in 2026: $20 Plus vs Cursor's $8 to $200 TiersThe old 'same $20' framing is dead. ChatGPT Plus still costs $20/month flat. Cursor's new plans are Plus at $8 (Grok models only), Premium at $30, Super at $100 and Ultra at $200, and on Premium and above every Claude, GPT or Gemini request is billed separately at API list price. A developer on Premium who sends a moderate 3M input and 600K output tokens a month to Claude Sonnet 5.5 pays about $42, not $30. For a generalist, ChatGPT Plus at $20 is still the cheaper and broader buy. For a full-time developer, Cursor Premium at a realistic $40 to $50 a month is now the honest comparison.Compare · Oct 17, 2026AI Subscription vs API Cost in 2026: Find Your Break-EvenThis is the numeric cost page, and the API is cheaper for most people. At GPT-6 Sol's $2/1M input and $10/1M output, a $20 ChatGPT Plus subscription breaks even at about 5M tokens a month on a 3:1 input-to-output mix. Claude Sonnet 5 at $2/$10 lands in the same place. Route routine work to GPT-5.4 mini ($0.75/$4.50) and the break-even moves past 11M tokens; on GPT-6 Luna ($0.10/$0.50) it is about 100M. Subscriptions win on convenience for daily chat; APIs win on cost for automation, agents and high-volume work.Best of · Oct 17, 2026Best AI for Coding on a BudgetAI coding tools ranked by what you actually pay: free editor tiers, the $20 subscriptions, and the cheapest APIs that still handle agent tool calls.Best of · Oct 17, 2026Best AI Under $20/Month in 2026: Every Tier Ranked by Monthly CostEvery mainstream AI subscription at $20 or less, ranked by what it costs each month: Google AI Plus at $4.99, ChatGPT Go and Cursor Plus at $8, then the $20 plans from ChatGPT Plus, Claude Pro, Perplexity Pro and Google AI Pro. Cursor Pro no longer makes the cut.Guide · Oct 15, 2026Codex Cloud vs Local Cost: GPT-5.3-Codex Pricing ComparedPrices the GPT-5.3-Codex API against ChatGPT subscription and self-hosted usage patterns, using the official 12-step reference run to show what a coding agent actually costs.Guide · Oct 15, 2026Agent Evals Cost: Per-Run and Monthly Pricing BreakdownPrices a 12-step agent eval trace across 12 models, cached and uncached, with monthly cost scenarios for 1k, 10k, and 100k eval runs.Pricing · Oct 1, 2026OpenRouter Pricing: Fees, Business Plan, Batch and Routers (2026)OpenRouter bills provider rates plus a 5.5% credit fee, or 8% on the new Business plan. See Batch API discounts, BYOK, routers, shell and in-region costs.Pricing · Oct 1, 2026Jev Pricing: TypeSafe's Decision Model Cost per Million DecisionsJev costs $0.042 per million input tokens and output is free. See cost per million decisions, OpenRouter fees, and when Jev beats a cheap LLM.

Comment ce bureau reste honnête

01Les prix API du catalogue sont rafraîchis dans la journée. Au-delà de deux semaines, nous les marquons périmés au lieu de les laisser paraître actuels.
02Les briefings d’actualité quittent le bureau public après trois semaines. Les pages d’achat durables restent listées tant que le catalogue API est Live ou Recent. Nous ne reculons pas les dates pour paraître à jour.
03Les questions ci-dessus sont les achats que les gens pèsent vraiment. Les nouvelles comparaisons apparaissent tant qu’elles restent actuelles.

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