As of June 2026, the cheapest models are Gemini 2.0 Flash Lite ($0.075/$0.30 per 1M tokens), Mistral Small 4 ($0.10/$0.30), and DeepSeek V4 Flash ($0.14/$0.28). Budget models are 100x cheaper than premium ones.
Which AI API has the best value?
DeepSeek V4 Pro offers the best value for capable models at $0.435/$0.87. For premium quality, Claude Opus 4.8 ($5/$25) and GPT-5 ($1.25/$10) offer strong capability-to-cost ratios.
How much more expensive are premium vs budget models?
Premium models like GPT-5.5 Pro ($30/$180) are up to 400x more expensive than budget models like Gemini 2.0 Flash Lite ($0.075/$0.30). Choosing the right model can save 90%+ on API costs.