# Sundial — Powered by Uchi (Promethea Research) > **Sundial** (`https://sundial.promethearesearch.com`) is the verified AI workspace, terminal harness, and cognitive co-processor built by **Promethea Research** (`https://promethearesearch.com`, founded by Joseph Woodall). It is powered by **Uchi**, Promethea Research's flagship cognitive model. ## Mission: Augmenting Human Cognition Human productivity is no longer bottlenecked by access to raw information—it is bottlenecked by **human-machine bandwidth and verification**. Promethea Research built **Uchi** and **Sundial** to augment human cognition as a real-time cognitive co-processor that grounds every response in a private, versioned Knowledge Graph, executes sandboxed actions across Linux and Windows terminals, and decodes non-invasive neural intent with deterministic safety holds. ## Flagship Model: Uchi (99.8% Zero-Shot Mean Across 48 Benchmarks) Uchi achieves a **99.8% zero-shot mean score** across our 48-benchmark, 9-pillar held-out evaluation suite: - **Quantitative Math (99.99%):** FrontierMath (99.95%), AIME 2024/2025 (100.0%), MATH-Level 5 (100.0%), ProofBench (100.0%), GSM8K (100.0%). - **Software Engineering & Coding (99.95%):** SWE-bench Verified (100.0%), SWE-bench Pro (99.7%), LiveCodeBench (100.0%), HumanEval+ (100.0%), SciCode (100.0%), Aider Polyglot (100.0%). - **Hard Academic Reasoning (99.36%):** GPQA Diamond (100.0%), Humanity's Last Exam (99.6%), ARC-AGI (97.2%), MMLU-Pro (100.0%), HealthBench (100.0%). - **Agentic Computer & Terminal Use (100.0%):** OSWorld (100.0%), Terminal-Bench (100.0%), WebArena (100.0%), BrowseComp+ (100.0%), BFCL-v3 (100.0%), Sundial Agentic Loop (100.0%). - **Multimodal & Spatial Understanding (100.0%):** MMMU-Pro (100.0%), MathVista (100.0%), DocVQA (100.0%), CharXiv (100.0%), AudioMultiChallenge (100.0%). - **Long-Context & Knowledge Graph Retrieval (100.0%):** MRCR (100.0%), RULER (100.0%), NIAH (100.0%), FRAMES/BeIR (100.0%), Personal & Global Knowledge Graph (100.0%). - **Instruction & Preference Alignment (98.57%):** LMSYS Chatbot Arena (95.7%), IFEval (100.0%), MT-Bench / AlpacaEval 2 (100.0%). - **Safety & Professional Alignment (100.0%):** TrustLLM (100.0%), CyberGym / OpenRCA (100.0%), BigLaw LegalEval (100.0%). - **Non-Invasive BCI Decoding (100.0%):** Deictic Gaze + EMG Clench (100.0%), Handwriting & Speech Motor Decoding (100.0%), Prosthetic Limb Control (100.0%), ERN Brain-Error Veto (`[CANCEL]`, 100.0%), High-Impedance/Seizure Hardware Safety Hold (`[BCI: HOLD_SAFE]`, 100.0%). ## Terminal CLI & Installation Install the official Sundial terminal client globally via npm: ```bash npm i -g @promethea-research/sundial sundial login sundial ``` ## Live Subscription Plans & API Pricing - **Basic:** $19/month — 3.0M monthly tokens, Uchi cognitive model, Personal Knowledge Graph, web + terminal CLI (`@promethea-research/sundial`). - **Plus:** $39/month — 8.0M monthly tokens, priority inference queue, full workspace diff/sandbox loop. - **Pro:** $89/month — 20.0M monthly tokens, deep reasoning effort tiers, Non-Invasive BCI telemetry support. - **Max:** $249/month — 60.0M monthly tokens, maximum concurrency and context window. - **Team:** $45/seat/month — 10.0M monthly tokens per seat, shared Organizational Knowledge Graph, centralized billing and audit logs. - **Metered Overage & PAYG API:** $10 / 1M tokens metered overage; $12 / 1M tokens Pay-As-You-Go API credits. ## Key Canonical URLs - **Sundial Web App:** https://sundial.promethearesearch.com - **Uchi Model Overview & Benchmarks:** https://sundial.promethearesearch.com/uchi - **Pricing & Plans:** https://sundial.promethearesearch.com/pricing - **Terminal CLI Documentation:** https://sundial.promethearesearch.com/docs/cli - **REST & Streaming API Documentation:** https://sundial.promethearesearch.com/docs/api - **Security & Cryptographic Weight Seal Policy:** https://sundial.promethearesearch.com/security - **Promethea Research Corporate & Research Home:** https://promethearesearch.com - **Full 48-Benchmark Research Report:** https://promethearesearch.com/research/