DeepSeek
High-performance reasoning LLMs with an OpenAI-compatible API — access DeepSeek-V3 and DeepSeek-R1 models at extremely competitive pricing.
Use Cases
Free Tier
10M tokens on signup, no credit card required
How to Maximize the Free Tier
The 10M token grant is one of the most generous sign-up bonuses in the AI API space — enough for extensive prototyping and evaluation. Use R1 for reasoning-heavy tasks where you need chain-of-thought, and V3 for general chat and code generation where speed matters. Cache repeated system prompts to stretch tokens further. After the free grant, pricing is $0.27/$1.10 per 1M tokens for V3 and $0.55/$2.19 for R1 — still among the cheapest frontier models. Pair with Groq for low-latency serving when DeepSeek's own API is slow.
Getting Started
Sign up at platform.deepseek.com → create an API key (no credit card) → pip install openai → set OPENAI_API_KEY and OPENAI_BASE_URL to https://api.deepseek.com/v1 → send a chat completion using DeepSeek-V3 or DeepSeek-R1 → monitor token usage in the dashboard.
Pros
- Free token grant: 10M tokens on signup is enough for extensive prototyping and testing before spending a dollar
- OpenAI compatible: Drop-in replacement for OpenAI SDK — change base_url and API key, existing code works unchanged
- Low pricing: DeepSeek-V3 at $0.27/$1.10 per 1M tokens is 10-20x cheaper than GPT-4o for comparable quality
Cons
- One-time grant: The 10M token bonus is not recurring — once spent, you must add a payment method to continue
- API reliability: DeepSeek's API can be slower or less stable than US-based providers during peak hours
- Limited model selection: Only offers V3 and R1 — no image, audio, or embedding models