WhichAI.today exists so anyone can match a task to the AI model that is actually leading that kind of work today, instead of defaulting to whichever chatbot they signed up for first.
Most people treat "AI" as one product. It is not. Coding, contract review, creative writing, math, high-volume automation, and everyday questions are different jobs, and they are won by different models. The mission is to make that choice obvious in one screen: the current leader, why it leads, a strong alternative, and the best model you can run yourself.
Frontier models leapfrog each other every few weeks, and they do not leapfrog in the same category. A model that leads coding this month can trail on legal reading or speed. Last quarter's default is often this month's second or third choice. These are the leaders as of October 24, 2026. The table updates when the rankings do.
| Category | Today's #1 | Alternative | Open weights |
|---|---|---|---|
| 💻 Coding & Software | Claude Opus 5.5 | GPT-6 Astra | Kimi K3 |
| ⚖️ Legal & Long Documents | Claude Fable 5.1 | Gemini 4 Argon | Kimi K3 |
| ✍️ Writing & Marketing | Claude Opus 5.5 | Gemini 4 Argon | MiMo-V2.6-Pro |
| 🧮 Reasoning, Math & Science | Claude Opus 5.5 | GPT-6 Astra | MiMo-V2.6-Pro |
| ⚡ Speed & High Volume | Gemini 3.5 Flash-Lite | Claude Haiku 5.5 | DeepSeek V4.1 Flash |
| ✨ General & Everyday | Gemini 4 Argon | GPT-6.1 Sol | MiMo-V2.6-Pro |
Every recommendation comes from one of six categories: coding, legal and long documents, writing and marketing, reasoning and math, speed and high volume, and a general catch-all for everyday tasks. Each has its own page with the current picks and the leader history. Picks are grounded in public evaluations from LMArena, Artificial Analysis, Vals AI, SWE-bench, GPQA, and Humanity's Last Exam.
A daily job re-checks those sources. A new number one has to show up on two daily checks before it replaces the current leader. When you search, common phrases match a category instantly. Unusual wording goes to a fast classifier, and anything it cannot place lands in General, so a search always returns a recommendation. Plan a project does the same thing for a whole piece of work: it splits the description into stages and labels each stage with a category. The model names always come from the rankings, never from the planner's own opinion.
Quick pick is for one job. Try "fix a bug in my React app," "summarize this earnings call," or "write a LinkedIn post." You get today's leader, an alternative, and an open-weights option, each with a reason and a direct link.
Plan a project is for work with more than one kind of task. Describe what you are building, the main parts, the timeline, the team, and the scale. A solo blog relaunch, a three-month invoicing app, and a 40-person contract-review rollout each come back as a different sequence of stages, with the right model for that stage.
Run by Pierce D.. Report an error on GitHub.
No paid placement, no affiliate links in the picks, and no provider sponsorship. A model is listed because of the public board for that job.
Open a GitHub issue to report an error. Corrections and changes to the ranking method are logged publicly on Changes.
The boards, the two-check rule, and the fact-check gate are on the methodology page. Benchmarks measure a public task, not your exact files. Rankings can lag a launch by a day, because the refresh runs once a day and only publishes answers that pass the checks.
As of October 24, 2026, Claude Opus 5.5 from Anthropic leads coding. Tops major coding benchmarks and leads LMArena for building software and complex debugging. The closest alternative is GPT-6 Astra (OpenAI), and the best open-weights option is Kimi K3.
Neither wins every job. Claude models currently lead coding and long-document work, while other models lead general chat, speed, or price. WhichAI.today picks by task instead of crowning one brand.
A scheduled job researches public leaderboards every day. A new number one has to come up on two checks in a row before it replaces the current leader, so a one-day blip does not flip the pick. Big launches usually reshuffle a category every few weeks, not every hour.
Yes. There is no account and no paywall. You type a task or describe a project and get today's picks, with links to the model providers.
An open-weights model publishes its weights so you can download and run it yourself, often on your own hardware. That matters when client data, source code, or contracts cannot leave your network. Every category on WhichAI.today includes one.
Use the Legal & Long Documents pick. Right now that is Claude Fable 5.1, chosen for reading dense sources such as contracts, filings, transcripts, and earnings calls without dropping details.
Yes. A product launch might need a coding model for the app, a writing model for the launch copy, and a long-document model for the terms. Plan a project splits the work into stages and assigns today's pick to each stage.
Public, independent evaluations: LMArena human-preference votes, the Artificial Analysis Intelligence Index, Vals AI LegalBench, SWE-bench, GPQA, and Humanity's Last Exam. The plain-English reasons cite the benchmark behind each pick.