Peak Pocket AI

Run language models entirely on your iPhone and measure how they behave: speed, confidence, recall, heat, and battery. Private by design, no account, works offline.

Peak Pocket AI is a lab for language models that run on your iPhone. Chat privately with open models, then look under the hood: how fast they generate, how confident they are in every word, how well they remember a long prompt, and how your phone holds up under sustained load.

PRIVATE BY DESIGN Models run on the device. Your chats, notebook, photos, and settings never leave your iPhone. No account, no analytics, no ads. Once a model is downloaded, everything works in airplane mode.

A LAB NOTEBOOK FOR EVERY GENERATION Every reply is recorded with its seed, settings, timings, and device state. Rerun any run with identical settings and see whether the output reproduces, character for character. Export runs as CSV or JSON, or as a signed report that anyone can check for changes.

LIVE TELEMETRY Watch tokens per second, time to first token, memory, and thermal state as a reply streams in.

SEE WHAT THE MODEL WAS THINKING Confidence shading shows how sure the model was of each word. Tap any word to see the alternatives it nearly chose, with their probabilities. Reasoning models show their thinking above the answer.

EVALUATIONS Score models on built-in question sets for knowledge, math, tool calling, and structured JSON output, or import your own. Compare two models on the same questions with confidence intervals.

EXPERIMENTS Run the same prompt and seed across models or settings. Measure how speed and memory change as the context fills, and test long-context recall: hide a fact at different depths of a long prompt and chart how often the model finds it.

ENDURANCE AND ENERGY Measure what sustained generation does to your phone: throughput over time, throttling, thermal state, and battery used. An energy-per-token estimate is shown when a run is measured on battery.

VISION AND APPLE'S ON-DEVICE MODEL Ask vision models about a photo, processed on the device. On iPhones with Apple Intelligence, chat with and evaluate Apple's built-in model alongside open models.

BRING YOUR OWN MODELS Browse Hugging Face for GGUF models with a fit estimate for your phone's memory, including gated models with your access token. Optionally connect an OpenAI-compatible provider with your own API key; remote chats are clearly marked.

MAKE IT YOURS Four themes in light and dark, including High Contrast, a colorblind-safe confidence scale, science personas, and share cards for any run or comparison.

Built by Peak Summit Labs.