
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
Search AI tools, categories, and leaderboards
Sierra records 341,072 monthly visits with +16.4% month-over-month growth and Contact for Pricing pricing. VS Code records 7,397,370 monthly visits with -3.8% growth and Freemium pricing.

Build AI agents that handle customer conversations across chat, voice, email, SMS, and WhatsApp.
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | sierra.ai | code.visualstudio.com |
| Pricing Model | Contact for Pricing | Freemium |
| Monthly Visits | 341.07K (341,072) | 7.4M (7,397,370) |
| MoM Traffic Delta | +48.11K (+16.4%) | -288.8K (-3.8%) |
| Primary Market & Share | 🇺🇸 United States (53.8%) | 🇺🇸 United States (18.9%) |
| Direct Visits / mo | 135.9K | 2.17M |
| User Rating | 4.6 | 4.8 |
| Supported Platforms | Website | Website |

Build AI agents that handle customer conversations across chat, voice, email, SMS, and WhatsApp.
Turn SOPs, transcripts, whiteboard photos, audio recordings, or a plain-English goal into a production-ready, multilingual, multichannel agent with built-in guardrails.
Run a single agent across chat, SMS, WhatsApp, email, voice, and ChatGPT so customers get consistent help on their preferred channel.
Insights Explorer, Monitors, Experiments, and Observability surface agent performance, flagged conversations, and every tool call, lookup, and latency event.
Breaks complex outcomes into steps that improve over days or months, with customer context memory and proactive engagement triggered by real-world signals.

Write code with precision, hand bigger jobs to agents, and keep working from anywhere
Agents open the repository, form a plan, edit multiple files and explain the changes so you can review each diff before accepting it. You can also run several agents in parallel to push a backlog forward.
Point the editor at Anthropic, OpenAI, Google, Microsoft or open-weight models, or bring your own key. Pick the Copilot, Claude or Codex harness that matches how you like to work.
JavaScript, TypeScript, HTML and CSS work out of the box, and Marketplace extensions add IntelliSense, linting, refactoring and debuggers for Python, Java, C++, Go, Rust and more.
Integrated terminal, source control, debugger, testing, Jupyter notebooks, an integrated browser and Dev Containers all live in one window, so you stay close to the code.

OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
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