LLM Gateway – Features & Implementation Status
This document provides a high-level overview of the LLM Gateway's capabilities and the current production status of each component.
Core Features
- Unified Interface: Single API surface for text, image, video, and audio generation, abstracting away provider-specific SDKs.
- Provider Agnostic: Switch between Gemini, Hugging Face, Stability, WaveSpeed, etc., via configuration or runtime parameters.
- Subscription Enforcement: Strict pre-flight checks against user plans (Free, Basic, Pro, Enterprise) before any API call.
- Cost Awareness: Granular tracking of input/output tokens, request counts, and media generation costs per provider/model.
- Resilience: Built-in retries (exponential backoff) for transient failures (rate limits, timeouts).
- Observability: Centralized logging (
APIUsageLog) and usage aggregation (UsageSummary) for all modalities.
- Streaming Support: (Partial) Infrastructure exists for text streaming, though primarily used for blocking responses currently.
Implementation Status
1. Text Generation
| Feature |
Provider |
Status |
Notes |
| Chat/Completion |
Google Gemini |
✅ Production |
Default provider. Supports gemini-2.0-flash. |
| Chat/Completion |
Hugging Face |
✅ Production |
via Inference Providers (e.g., mistralai/Mistral-7B). |
| Structured JSON |
Gemini |
✅ Production |
Uses response_schema for reliable parsing. |
| Structured JSON |
Hugging Face |
✅ Production |
Uses response_format={ "type": "json_object" }. |
2. Image Generation
| Feature |
Provider |
Status |
Notes |
| Text-to-Image |
Google Gemini |
✅ Production |
Imagen 3 models. |
| Text-to-Image |
Hugging Face |
✅ Production |
FLUX.1 via fal-ai/Black Forest Labs. |
| Text-to-Image |
Stability AI |
✅ Production |
Core/SD3 models. |
| Text-to-Image |
WaveSpeed |
✅ Production |
High-speed generation. |
| Image Editing |
WaveSpeed |
✅ Production |
Inpainting, background removal, face swap. |
3. Video Generation
| Feature |
Provider |
Status |
Notes |
| Text-to-Video |
WaveSpeed |
✅ Production |
HunyuanVideo-1.5, LTX-2 Pro. |
| Image-to-Video |
WaveSpeed |
🚧 Planned |
Roadmap item. |
4. Audio Generation
| Feature |
Provider |
Status |
Notes |
| Text-to-Speech |
Gemini |
✅ Production |
Audio generation capability. |
| Text-to-Speech |
WaveSpeed |
✅ Production |
Fast TTS. |
| Speech-to-Text |
Gemini |
✅ Production |
Transcription (via audio_to_text_generation). |
5. Research & Tools
| Feature |
Provider |
Status |
Notes |
| Web Search |
Tavily |
✅ Production |
Integrated for grounded research. |
| Web Search |
Serper |
✅ Production |
Google Search API alternative. |
| Web Search |
Exa |
✅ Production |
Neural search. |
Roadmap & Next Steps
- Streaming Standardization: Unify streaming interfaces across all text providers for consistent frontend UX.
- Model Fallbacks: Automatic failover to secondary providers if the primary is down (currently manual/env-based).
- Fine-tuning Support: Add gateway endpoints for triggering and using fine-tuned jobs.
- Caching Layer: Redis-based semantic caching for frequent queries to reduce costs.
