Transparent Chain-of-Thought Reasoning

The AI that thinks out loud

Ask anything. Watch step-by-step reasoning unfold — observations, analysis, conclusions — then get a precise final answer with a calibrated confidence score. No black-box AI. Full transparency.

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Three modes of reasoning

Match depth to complexity

Not every question needs the same rigor. Choose the reasoning depth that fits your problem — from instant answers to full research-grade analysis.

~5s
Quick

Instant clarity

Fast surface-level reasoning for straightforward questions. Get concise, well-structured answers in seconds.
  • 1–2 reasoning steps
  • Ideal for factual queries
  • Ultra-low latency
Most popular
~20s
🔬 Deep

Thorough analysis

Multi-layered reasoning that examines evidence, considers alternatives, and builds a rigorous argument before concluding.
  • 5–8 reasoning steps
  • Evidence weighting
  • Alternative hypotheses
~60s
🧪 Expert

Maximum depth

Full research-grade reasoning chains. Best for complex, ambiguous, or high-stakes problems requiring expert analysis.
  • 15+ reasoning steps
  • Contradictions resolved
  • Confidence calibration

How it works

Three steps to a confident answer

Every interaction follows the same transparent process. You always know how the AI arrived at its answer.

1

Ask Anything

Type your question — a complex problem, a nuanced topic, a decision you need help with. No special syntax required.

2

AI Reasons Step by Step

Watch the model think in real time. Observations surface, hypotheses form, evidence is weighed — all transparently.

3

Get an Answer + Confidence

Receive a well-structured final answer alongside a calibrated confidence score so you know exactly how certain the AI is.

Live demo

Watch the reasoning unfold

Unlike traditional AI chatbots that return an opaque answer, Reasoner exposes every step. You can follow the logic, spot where the model is uncertain, and trust the conclusion.

  • Observations

    The AI first identifies what it knows and what the question implies.

  • Analysis

    Multiple hypotheses are considered, evidence weighed, contradictions resolved.

  • Conclusions

    A final reasoned answer is formed and a confidence score is calibrated.

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Why haven't we detected any extraterrestrial civilisations yet?
Expert mode

Start reasoning smarter today

Join thousands of researchers, engineers, and curious minds who trust Reasoner to think through complex problems transparently.

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