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Inflection AI

Maker of the Pi assistant and Inflection-3 models, offering a developer API and an enterprise AI system you can host yourself.

What is Inflection AI?

Inflection AI builds conversational language models, including Pi, the assistant behind the pi.ai site and the Pi iOS app. Developers can call the Inflection-3 family through a commercial API at developers.inflection.ai, with a Pi model for emotionally aware conversation, a Productivity model tuned for instruction following and JSON output, and a Pi 3.1 preview in beta for tool calling and agentic work. A browser playground, API keys, workspaces and a usage dashboard come with the developer portal. For large organisations, Inflection for Enterprise offers fine-tuned models that can run on-premises, in the cloud or in a hybrid setup, with Intel Gaudi 3 accelerators supported, and Agentic Workflows built with UiPath to trigger automations. The developer portal has a pricing section but the figures were not shown, so check the portal or contact the company for rates.

Use cases

  • Build a customer support chatbot
  • Generate structured JSON responses from instructions
  • Fine-tune an enterprise model on company data
  • Host an enterprise AI system on-premises
  • Trigger business automations from a chat assistant
  • Test prompts in a browser playground

Who it's for

  • Developers
  • Enterprise IT teams
  • Product teams
  • AI researchers

Why use Inflection AI

  • Separate models let you choose conversational tone or strict instruction following per task.
  • Enterprise customers can own their data, fine-tuned model and the architecture it runs on.
  • A playground and usage dashboard make testing and cost tracking simple for developers.
  • UiPath-backed workflows let the assistant take actions, not only answer questions.

Inflection AI features

  • Inflection-3 Pi model for conversational, emotionally aware replies
  • Inflection-3 Productivity model for instruction following and JSON output
  • Pi 3.1 preview model with tool calling for agentic workflows
  • Chat completion API with temperature, max tokens and optional web search settings
  • Developer portal with playground, API keys, workspaces and usage tracking
  • Enterprise deployment on-premises, in the cloud or hybrid
  • Agentic Workflows with UiPath for trusted, predetermined actions
  • Streaming and JSON response modes documented in the API

Inflection AI integrations

  • UiPath
  • Intel Gaudi 3
  • Intel Tiber AI Cloud

How to get started with Inflection AI

  1. Sign in to the developer portal and create an API key.
  2. Try the Pi, Productivity or Pi 3.1 preview models in the playground.
  3. Send conversation turns to the inference endpoint with your chosen model name and settings.
  4. Create a workspace to share keys and usage with your team.
  5. For enterprise needs, contact Inflection about fine-tuning, hosting options and Agentic Workflows.

Inflection AI limitations

  • The API is rate limited to 100 requests per minute per key unless you ask for more
  • Pi 3.1 is a preview model in beta testing
  • API terms bar using outputs to train competing models or presenting them as human-written
  • Published price figures were not available on the developer portal pages

Inflection AI pricing

We couldn't confirm pricing on the official site. Check inflection.ai for current prices.

Prices can change and may vary by country or exclude tax. Check the official pricing page.

Inflection AI alternatives

The main Inflection AI alternatives listed on Debuly are Cohere, Mistral AI, Google Gemini, ChatGPT, LLM and LMQL. The table compares pricing and platforms; order is A–Z.

Inflection AI compared with its alternatives
ToolPricingStarting pricePlatforms
Inflection AIPricing unknown—Web, iOS, API, Self-hosted
ChatGPTFreemium—Web, iOS, Android, macOS
CohereFreemium—API, Web, Private deployment
Google GeminiFreemium——
LLMOpen source—CLI, API
LMQLOpen source—Python, CLI, Web, Self-hosted
Mistral AIFreemium$14.99/moWeb, API, CLI, Self-hosted
  1. ChatGPT

    OpenAI's AI assistant for chat, writing, analysis, images, voice, deep research and coding across web, iOS and Android.

  2. Cohere

    Enterprise AI company offering Command, Embed and Rerank models by API, the North agent platform and private deployments.

  3. Google Gemini

    Google's AI assistant for questions, writing, research and image or video creation, with links into Gmail, Docs and other Google apps.

  4. LLM

    Command-line tool and Python library by Datasette for prompting OpenAI, Claude, Gemini and local models, with SQLite logging.

  5. LMQL

    Programming language from ETH Zurich for LLM prompting that adds Python control flow, typed variables and hard output constraints.

  6. Mistral AI

    AI company offering open-weight models, the Vibe assistant, Studio and an API, with a free plan and paid tiers.

Inflection AI FAQ

How much does the Inflection AI API cost?

The developer portal has a pricing section, but no figures were visible in the available material. Check developers.inflection.ai or contact Inflection for current rates.

Does Inflection AI have an API?

Yes. A commercial API is available through the developer portal, with models such as inflection_3_pi and inflection_3_productivity, plus a Pi 3.1 preview. The default limit is 100 requests per minute per key.

Which models does Inflection AI offer?

Pi (3.0) for conversational use, Productivity (3.0) for instruction following and JSON output, and Pi (3.1-Preview) for tool calling and agentic features, which is in beta.

Can Inflection AI be self-hosted?

Inflection for Enterprise can be hosted on-premises, in the cloud or in a hybrid setup, and the customer owns its data and fine-tuned model.

Does Inflection AI integrate with other tools?

Agentic Workflows are built with UiPath, which connects to enterprise systems and data sources. The enterprise system also runs on Intel Gaudi 3 accelerators and Intel Tiber AI Cloud.

What are alternatives to Inflection AI?

Common alternatives for hosted language model APIs include OpenAI, Anthropic, Cohere, Mistral AI and Google Gemini.

Sources & verification

Facts on this page come from the official sources below, each with the date we read it. Written by Debuly; the vendor did not review this page.

SourceTypeAccessed
inflection.ai/official
developers.inflection.ai/docs/pricingpricing
inflection.ai/blog/enterpriseofficial
inflection.ai/blog/agenticofficial
developers.inflection.ai/usageofficial
developers.inflection.ai/apiofficial

Image credits

  • Logo: from framerusercontent.com · fetched · Vendor trademark, used only to identify the product; removed on request
  • Cover: none collected yet, so a generated tile is shown.

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