Model Overview
LW AI provides access to high-quality AI models through a unified, OpenAI-compatible API. Choose the right model for your task based on context length, capabilities, and cost.
Available Models
| Model | Context | Input ($/M) | Output ($/M) |
|---|---|---|---|
| DeepSeek V4 Pro | 1.0M | - | - |
| DeepSeek V4 Flash | 1.0M | - | - |
| DeepSeek Reasoner | 128K | - | - |
| DeepSeek Chat | 128K | - | - |
| GLM-5.2 | 1.0M | - | - |
| GLM-5.1 | 200K | - | - |
| GLM-5 | 200K | - | - |
| Yantronic V1 Pro | 1.0M | - | - |
| Astra V1 Pro | 1.0M | - | - |
Note: Prices are listed per million tokens. Contact sales for enterprise pricing and volume discounts.
Model Categories
Advanced Reasoning
DeepSeek V4 Pro, DeepSeek Reasoner, and GLM-5.1 are built for complex reasoning, coding, and mathematical tasks with large context windows.
Fast & Cost-Effective
DeepSeek V4 Flash and DeepSeek Chat offer lower latency and cost, ideal for high-volume applications and general-purpose tasks.
Domain-Specific
Yantronic V1 Pro is optimized for finance and insurance reasoning, delivering superior accuracy on domain-specific tasks.
Astra V1 Pro — Fusion & Orchestration
Astra V1 Pro is LW AI's multi-model fusion LLM that uses intelligent routing and ensemble inference to automatically select and combine the best models for each query, optimizing for cost, speed, and accuracy.
Feature Support
| Model | Streaming | Function Calling | 1M Context |
|---|---|---|---|
| DeepSeek V4 Pro | ✓ | ✓ | ✓ |
| DeepSeek V4 Flash | ✓ | ✓ | ✓ |
| DeepSeek Reasoner | ✓ | ✓ | — |
| DeepSeek Chat | ✓ | ✓ | — |
| GLM-5.1 | ✓ | ✓ | — |
| GLM-5 | ✓ | ✓ | — |
| Yantronic V1 Pro | ✓ | — | ✓ |
| Astra V1 Pro | ✓ | — | ✓ |
Choosing a Model
| Your Task | Recommended Model |
|---|---|
| Complex coding / math | DeepSeek V4 Pro |
| High-volume, low-latency | DeepSeek V4 Flash |
| Math proofs / logic chains | DeepSeek Reasoner |
| General-purpose, cost-effective | DeepSeek Chat |
| Agentic engineering / coding | GLM-5.1 |
| Systems engineering | GLM-5 |
| Finance / insurance domain | Yantronic V1 Pro |
| Automatic model selection | Astra V1 Pro |
Rate Limits
Default rate limits vary by model and account tier. See Rate Limits for details.
Related
- Authentication — Get your API key
- Chat Completions — Start making requests
- Pricing — Full pricing details