BerriAI/litellm - GitHub vs Flex AI
Side-by-side comparison · Updated October 2026
| Description | LiteLLM is an AI gateway and Python SDK from Berrie AI Incorporated, published in the BerriAI GitHub repository. The SDK provides a common interface for model calls inside Python applications. The proxy gateway centralizes access for a team, with virtual keys, model routing, spend tracking, budgets and an administration interface. The official documentation lists support for more than 100 model providers. Supported endpoints and features vary by integration, so verify your model’s streaming, tool-calling, image, audio or embedding requirements. The router supports retries, fallbacks and load balancing; observability integrations can send request data to tools such as Langfuse, LangSmith and OpenTelemetry. LiteLLM also provides an MCP gateway. It can connect upstream servers using Streamable HTTP, SSE or stdio, expose tools through a fixed gateway endpoint, and scope access by key, team or organization. This requires configuring the upstream servers and authentication; the gateway does not automatically grant access to third-party tools. Agent-to-agent integrations are documented separately. The open-source offering has no software license fee for self-hosting. Code outside the enterprise directory is MIT-licensed, while enterprise code has separate terms. Enterprise pricing is quoted by annual gateway request capacity, deployment architecture and support needs, rather than a per-token license charge. Model-provider charges and infrastructure costs still apply. Enterprise adds controls and support such as SSO, SCIM, audit logs and service-level agreements. Compare New API for another self-hosted gateway with provider-channel management and usage accounting. Evaluate a representative workload, inspect request logging and secret handling, test budget and failure behavior, and decide whether SDK integration or a shared gateway best fits your application. | Flex Fitness App is designed to help you build muscle and lose weight quickly and effectively through personalized workouts. The app is compatible with iPhone and Apple Watch and is packed with features such as exercise tracking and sharing, automatic progressions, bodyweight tracking, plate calculator, and music control. Flex Fitness App also includes community engagement options, like sharing your workout progress and participating in discussions, plus gamification elements. This makes it fun and motivating to stay on track with your fitness goals. The app is free to use, with impressive testimonials backing its effectiveness and user satisfaction. |
| Category | Developer Tools | Fitness |
| Rating | No reviews | No reviews |
| Pricing | Open Source | Free |
| Starting Price | N/A | Free |
| Plans | — |
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| Tags | AI gatewayPython SDKLLM routingMCP gatewayvirtual keys | fitnessmuscle buildingweight losspersonalized workoutsexercise tracking |
| Features | ||
| Python SDK for direct application integration | ||
| Shared AI proxy gateway and administration UI | ||
| More than 100 documented model-provider integrations | ||
| Virtual keys, users, teams, budgets and rate limits | ||
| Spend tracking and observability integrations | ||
| Router retries, fallbacks and load balancing | ||
| MCP gateway for Streamable HTTP, SSE and stdio upstreams | ||
| Key, team and organization MCP permissions | ||
| Separate enterprise identity, audit and support features | ||
| Free to use | ||
| Available on iPhone and Apple Watch | ||
| Customizable workout plans | ||
| Community engagement | ||
| Gamification elements | ||
| Automatic progression of exercises | ||
| Body weight tracker | ||
| Plate calculator | ||
| Music control | ||
| Positive user testimonials | ||
| View BerriAI/litellm - GitHub | View Flex AI | |
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