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AI Tool Comparison
Cerebras Inference vs Open WebUI
A side-by-side breakdown to help you pick the right tool for your workflow.
Cerebras Inference
Run Llama 70B at 1,800 tokens per second — 20x faster than GPU alternatives. The only inference provider where speed itself is the competitive moat.
Models
freemium
Open WebUI
Run a self-hosted chat interface for local or API-based LLMs like Ollama behind your own login and controls — free at any scale if you keep default branding.
Models
free
Bottom Line
Cerebras Inference edges ahead on rating (4.7 vs 4.6), but the right pick still comes down to which workflow you're running.
Choose Cerebras Inference if…
Coding
Choose Open WebUI if…
Local LLM Interface
| Attribute | Cerebras Inference | Open WebUI |
|---|---|---|
| Category | Models | Models |
| Pricing | freemium | free |
| Pricing Detail | Free tier available / Pay-per-token | Free (open source) / Enterprise custom over 50 users |
| Rating |
Key Features
Cerebras Inference
- 1,800+ tokens/second on Llama 3.1 70B — fastest available
- Wafer-scale chip architecture eliminates inter-chip communication overhead
- Supports Llama 3.1, 3.3, DeepSeek R1, and Qwen models
- OpenAI-compatible API with streaming support
- Free tier for prototyping with no credit card required
- Real-time performance suitable for voice and interactive applications
Open WebUI
- Multi-model conversations
- Document upload and RAG
- Web search integration
- User management for teams
- Conversation history
- Plugin support
Pros
Cerebras Inference
- •Fastest inference in the industry by a wide margin
- •Free tier is genuinely useful, not just a trial
- •OpenAI-compatible — drops into existing code immediately
Open WebUI
- •Feature parity with commercial chatbots, free and private
- •Works with any OpenAI-compatible backend
- •Active development with frequent updates
Cons
Cerebras Inference
- Model selection is limited to a curated set, not the full open-source catalog
- Purpose-built hardware means no custom model fine-tuning support
- Very high throughput can mask context window limitations
Open WebUI
- Requires server setup and maintenance
- Performance depends entirely on host hardware