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Tools💻 Code & DevelopmentNot Diamond
Not Diamond

Not Diamond

Freemium

Route prompts to the best AI model automatically, learning your preferences.

By Tanmay Verma, Founder · Last verified 03 Jul 2026

0 views
Added 6d ago
77/100Safe Bet
Visit Website

In short

Not Diamond — Route prompts to the best AI model automatically, learning your preferences. Best for Power users wanting the best model per task without switching, Developers needing a flexible AI API for custom workflows, Teams seeking a shared adaptive AI assistant. Free to use.

Compared withvs Locus Roboticsvs Truleovs Presto Voice

Is Not Diamond actually worth it?

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See what real users actually say. We scan live discussions, reviews and complaints across the web and hand you an honest verdict — in under a minute.

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Editorial Verdict

Best for
Power users wanting the best model per task without switchingDevelopers needing a flexible AI API for custom workflowsTeams seeking a shared adaptive AI assistantProductivity enthusiasts who want a personalized chatbotEarly adopters willing to beta test a multi-model approach
Not ideal for
Users requiring a completely free service with unlimited usageThose who prefer a single-model chatbot for simplicityUsers with strict data privacy requirementsAnyone needing immediate production reliability (beta product)People who dislike an invite-only signup process

Not Diamond's model-routing approach is innovative and genuinely useful for anyone frustrated by single-model limitations. Its beta status and invite-only access mean it's best for early adopters who want to shape the product.

Compare with: Not Diamond vs Cortex.cpp

Last verified: July 2026

What independent users actually report about Not Diamond

We ran a structured research pass across product reviews, community discussions, and post-purchase forum threads to surface the patterns vendors won't publish themselves. Below: the recurring strengths, the hidden costs people mention most, and the cohort that consistently regrets adopting this tool.

35 mentions across 3 sources (Hacker News, Product Hunt, Lemmy).

42% positive58% critical
Recurring strengths
  • +Automatically routes to the best model for each prompt.
  • +Learns user preferences over time from feedback.
  • +Saves time by eliminating manual model switching.
  • +Provides per-chat cost transparency for benchmarking.
  • +Supports multiple top models: GPT-4o, Claude, Gemini.
Recurring frustrations
  • −Router may trust cheap models incorrectly without evidence.
  • −Still in invite-only beta — limited real-world validation.
  • −Requires user feedback to learn, adding interaction overhead.
  • −Privacy risks from storing conversation history.
  • −No offline or self-hosted option available.
Patterns worth knowing
Router trust and transparency are the biggest concerns — users want to know why a model is chosen.
Seen on Hacker News, Product Hunt
Automatic multi-model orchestration is highly appealing for power users and devs.
Seen on Product Hunt
Cost-per-chat visibility is a standout feature for developers.
Seen on Product Hunt
Learning curve
beginnerProductive in ~5 minutes
Hidden costs people mention
  • • API usage may incur costs from underlying model providers (GPT-4o, Claude, etc.) on top of subscription
  • • Premium models may require separate API keys with their own pricing

Viability Score

77/100
Safe Bet

How likely is Not Diamond to still be operational in 12 months? Based on 4 signals — momentum (how recently it shipped), wrapper dependency, revenue model, and web presence.

momentum
55
funding runway
80
website health
90
wrapper dependency
100

Last calculated: July 2026

How we score →

Key Features

  • Automatic model routing based on prompt
  • Real-time learning from user feedback
  • Supports GPT-4o, Claude, Gemini, and more
  • Personalized response improvement over time
  • API for custom integrations
  • Conversation history and management
  • Privacy controls for data
  • Team workspaces for collaboration
  • Custom model configuration
  • Usage analytics

About Not Diamond

FreemiumBeginner-friendlyAPI availableWeb · API

Not Diamond is an intelligent AI assistant that automatically routes each prompt to the most suitable model from a curated set including GPT-4o, Claude, Gemini, and more. Instead of being locked into one AI, it selects the best model for your task—coding, creative writing, or factual queries—and adapts based on your feedback over time. This means you get higher quality responses without manually switching between chatbots. The system learns your preferences, continuously improving model selection to match your style. For power users and developers, Not Diamond offers an API for custom workflows and team workspaces. It supports multiple models, conversation history, privacy controls, and usage analytics. Currently in invite-only beta, it's designed for those who want a versatile, adaptive assistant that grows with them. The core differentiator is automatic model routing and real-time learning from feedback. Unlike traditional single-model chatbots, Not Diamond leverages the strengths of multiple top-tier models, routing each prompt to the best fit. This ensures more personalized and effective responses. Not Diamond emphasizes privacy and user control. Conversations are stored to improve learning, but users can manage their data. The platform is invite-only, with plans for broader access. It's ideal for early adopters willing to provide feedback in exchange for a cutting-edge experience.

Behind the Verdict

Not Diamond solves a real pain: deciding which AI model to use for each task. Its automatic routing is clever—it picks the best model based on your prompt and learns from your feedback. In practice, this means you get better responses over time without switching tabs. The API is a plus for developers wanting to integrate multi-model intelligence into their apps. When to pick this: If you're a power user who regularly tests different models or a developer building a multi-model workflow, Not Diamond's routing and learning are valuable. Teams needing a shared adaptive assistant will also benefit. When to pass: If you prefer a simple, single-model chatbot like ChatGPT for consistency, the routing adds complexity. Privacy-conscious users may hesitate because data is used for learning (though controls exist). Also, as a beta invite-only product, availability and support are limited. Compared to Chatbot Arena or Poe, which let you manually choose models, Not Diamond automates the choice. It's more personalized but less transparent. We'd reach for this when we want the best response without micromanaging model selection. The main caveat: it's still evolving, and pricing is unclear. For now, it's a promising tool for early adopters.

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Use Cases

  • Write a creative story with vivid descriptions using the best model for narrative.
  • Debug a complex code snippet by routing to the most accurate coding model.
  • Summarize a lengthy research paper succinctly with factual precision.
  • Generate business email drafts that match your tone preferences.
  • Learn a new topic by asking follow-up questions that adapt to your understanding.
  • Plan a travel itinerary that balances attraction recommendations and practical tips.

Models Under the Hood

GPT-4oClaude Sonnet 4.6gemini-2.0-flashmistral-largellama-3.3-70b

Limitations

  • Not Diamond is currently in beta, with limited availability.
  • The free tier imposes a daily message cap (likely 50 messages), and Pro pricing is not publicly listed.
  • The model routing relies on feedback loops, so initial interactions may not be optimal until the system learns user preferences.

12-month cost

Project the real annual outlay, including the implied monthly cost when only an annual tier is published.

Annual total
Free
Over 12 months
Effective monthly
Free
Billed monthly

Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.

Resources & Guides

  • Resourcechat.notdiamond.ai

    Login · Not Diamond

    Helpful link from chat.notdiamond.ai

Frequently Asked Questions

Tools that pair well with Not Diamond

Common stack mates teams adopt alongside Not Diamond, with the specific reason each pairing earns its keep.

C

Cortex.cpp

Open-source AI assistant for private offline inference

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Details

Pricing
Freemium
Skill Level
Beginner-friendly
Platforms
Web, API
API Available
Yes
Pricing & overview verified
6d ago

Categories

💻 Code & Development🤖 Automation & Agents

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Topics

AgentAPIText GenerationGeneral-Purpose LLMCode Generation

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