Cheapest LLMs with function calling
Pricing updated daily · Last refreshed Oct 30, 2026Lowest-priced models that support tool and function calling, ranked by blended price.
How this list is made
Models the catalogue marks as supporting tools (function calling), ordered by blended price, lowest first. It ranks by listed price and specifications only. It says nothing about output quality, which this site does not measure, so test candidates on your own task before choosing.
| Model | Provider | Blended $/1M | Context | Input $/1M | Output $/1M |
|---|---|---|---|---|---|
| Llama 4 Scout | Meta | $0.15 / 1M | 1.31M | $0.10 | $0.30 |
| Llama 3.3 70B Instruct | Meta | $0.155 / 1M | 131K | $0.10 | $0.32 |
| Claude Haiku 5.5 | Anthropic | $0.20 / 1M | 1M | $0.10 | $0.50 |
| GPT-6 Luna Pro | OpenAI | $0.20 / 1M | 1.05M | $0.10 | $0.50 |
| Ministral 3 14B 2512 | Mistral | $0.20 / 1M | 262K | $0.20 | $0.20 |
| Command R (08-2024) | Cohere | $0.262 / 1M | 128K | $0.15 | $0.60 |
| Mistral Small 4 | Mistral | $0.262 / 1M | 262K | $0.15 | $0.60 |
| Llama 4 Maverick | Meta | $0.304 / 1M | 524K | $0.188 | $0.652 |
| Command A+ | Cohere | $0.60 / 1M | 192K | $0.30 | $1.50 |
| Devstral 2 2512 | Mistral | $0.80 / 1M | 262K | $0.40 | $2.00 |
Showing the top 10 of 30 models in the catalogue. Prices are those OpenRouter charges and can differ from a provider’s own list price. Want to sort or filter differently? Use the model comparison tool.