What is the cheapest LLM API?

As of February 2026, the cheapest LLM APIs include Amazon Nova Micro ($0.035/1M input tokens), Meta Llama 3.1 8B ($0.05/1M), Google Gemini 1.5 Flash ($0.075/1M), and GPT-4o mini ($0.15/1M). DeepSeek also offers very competitive pricing.

How does ChatGPT pricing compare to Claude?

GPT-4o costs $2.50/1M input and $10/1M output tokens, while Claude 3.5 Sonnet costs $3.00/1M input and $15/1M output. For budget options, GPT-4o mini ($0.15 input) is cheaper than Claude 3 Haiku ($0.25 input).

Which LLM has the largest context window?

Google Gemini 1.5 Pro offers the largest context window at 2 million tokens. Gemini 2.0 Flash and 1.5 Flash offer 1 million tokens. Anthropic Claude models support 200K tokens, while most OpenAI models support 128K tokens.

LLM Pricing Comparison 2026 - Compare GPT-4, Claude, Gemini API Costs

Models Listed

Providers

Cheapest Input

Largest Context

Provider ↕	Model ↕	Context ↕	Input/1M ↕	Output/1M ↕

Prices last updated: February 2026. Prices may vary by region and usage tier.

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