Kontext
An open-source Chrome extension that captures your full ChatGPT or Claude conversation via the platform API, summarizes it on-device with Gemini Nano, and hands a structured kontext to any other AI.
β Pros / Advantages
- β’ Full-fidelity API capture, not lossy DOM scraping
- β’ On-device Gemini Nano summary, private, no key
- β’ BYOK fallback chain with free-tier models
- β’ Privacy-first: zero telemetry, local storage
- β’ Structured kontext format for AI-to-AI handoff
β Cons / Limitations
- β’ Very early, single contributor
- β’ Not on Chrome Web Store, build from source
- β’ Only ChatGPT and Claude today
- β’ Relies on undocumented platform APIs
π° Pricing Plans
Free
Pricing details are gathered from public sources and are subject to change. Please visit the official website for real-time rates.
Last updated: July 2026 Β· 9bests editorial review
β Who should use Kontext
- β’ Full-fidelity API capture, not lossy DOM scraping
- β’ On-device Gemini Nano summary, private, no key
- β’ BYOK fallback chain with free-tier models
- β’ Privacy-first: zero telemetry, local storage
- β’ Structured kontext format for AI-to-AI handoff
β οΈ Who should look elsewhere
- β’ Very early, single contributor
- β’ Not on Chrome Web Store, build from source
- β’ Only ChatGPT and Claude today
- β’ Relies on undocumented platform APIs
π― Common use cases
Brainstorming and drafting messages
Answering complex questions with citations
Coding help and debugging
βοΈ Kontext vs ChatGPT
| Kontext | ChatGPT | |
|---|---|---|
| Rating | 3.75/5 | 4.8/5 |
| Pricing | Free | Free / Plus $20/mo |
| Key strength | Full-fidelity API capture, not lossy DOM scraping | Largest ecosystem |
See the full head-to-head in our Kontext vs ChatGPT comparison.
β Frequently asked questions
Is Kontext free?
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Kontext offers a free tier (Free). Paid plans unlock higher limits and advanced features.
What is Kontext best for?
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Kontext is best for Full-fidelity API capture, not lossy DOM scraping and On-device Gemini Nano summary, private, no key. An open-source Chrome extension that captures your full ChatGPT or Claude conversation via the platform API, summarizes it on-device with Gemini Nano, and hands a structured kontext to any other AI.
How does Kontext compare to ChatGPT?
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Kontext (3.75/5) and ChatGPT (4.8/5) serve overlapping needs. Kontext stands out for Full-fidelity API capture, not lossy DOM scraping, while ChatGPT is stronger at Largest ecosystem. Choose based on your priority.
π Top Alternatives to Kontext
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