Just Prompts vs Tabnine

Just Prompts is a browser-based prompt workshop that applies Additive Prompting to whatever you type in. You paste your OpenAI API key once, enter a starting idea in the text field, and hit Prompt to get an expanded version back as formatted markdown in the output panel.

Most prompt playgrounds give you a blank chat box. Just Prompts is built around one specific technique from @nickfloats called Additive Prompting, which layers structure onto a rough idea instead of leaving you to guess what to add next. The whole interface is a single input, one submit button, and a rendered answer area.

Developers and writers who already have an OpenAI key and want a fast way to stretch a half-formed prompt into something more complete will find it useful. There is no account, no pricing page, and no extra features beyond key storage in a browser cookie and markdown output.

Tabnine is a code assistant that runs inside your IDE with inline completions, multi-line function suggestions, and chat grounded in your repository context. It connects to GitHub, GitLab, Bitbucket, or Perforce so suggestions reflect your architecture instead of generic public code patterns. Teams can deploy it as SaaS, in a VPC, on-premises, or fully air-gapped with zero code retention policies.

Most coding copilots optimize for speed on public repos, while Tabnine sells enterprise control: centralized governance, provenance tracking, SSO, and model choice across OpenAI, Anthropic, Google, Meta, and Mistral endpoints. The Agentic Platform adds CLI agents, MCP tool access, and the Enterprise Context Engine for Jira and Confluence-aware workflows. Tricentis acquired Tabnine in 2025, positioning it inside broader quality-engineering stacks.

Engineering teams in regulated industries use Tabnine when privacy and audit trails matter as much as autocomplete speed. Code Assistant costs $39 per user per month on annual billing, and the Agentic Platform with context engine and CLI agents costs $59 per user per month.