Best LLM API Providers Software 2026: 25 Tools Compared
Quick Answer

LLM API Providers software pricing ranges from Free to $270 per user per month in 2026. The category average is $11/user/month. 10 of 25 tools offer free tiers.

Quick Picks

Best Value

Groq

From Free/per million tokens

Best Free Tier

Cerebras Inference API

Free plan available

Most Feature-Rich

OpenAI API

Up to $270/per million tokens

Full Comparison Matrix

Product Starting Price Popular Tier Enterprise Free Tier Best For
Groq Free /per million tokens Free /per million tokens Free /per million tokens Yes Prototyping and evaluation
OctoAI Custom Custom Custom No Historical reference only — service is not available
Cloudflare Workers AI $0.05 /per million tokens $0.50 /per million tokens $5 /per million tokens Yes Prototyping + low-volume production at the edge
Lepton AI $0.07 /per million tokens $0.50 /per million tokens $4 /per million tokens No Developers needing fast serverless inference for open-source models
Mistral AI API $0.10 /per million tokens $0.50 /per million tokens $6 /per million tokens Yes Evaluation and prototyping
Cohere API $0.04 /per million tokens $0.60 /per million tokens $10 /per million tokens Yes Evaluation and prototyping
SambaNova Cloud $0.10 /per million tokens $0.90 /per million tokens $5 /per million tokens Yes Testing ultra-low-latency inference
Anyscale $0.15 /per million tokens $1 /per million tokens $5 /per million tokens No Teams needing scalable open-source LLM inference with Ray reliability
Baidu ERNIE API $0.10 /per million tokens $1 /per million tokens $10 /per million tokens No China-market apps and Chinese-first workloads
Cerebras Inference API $0.10 /per million tokens $1 /per million tokens $6 /per million tokens Yes Testing Cerebras's unique speed advantage
MiniMax API $0.20 /per million tokens $1 /per million tokens $3 /per million tokens No Long-context (1M tokens) and Chinese-language apps
Qwen API (Alibaba) $0.05 /per million tokens $1 /per million tokens $20 /per million tokens No Multilingual apps (strong Chinese), cost-sensitive deployments, vision tasks
NVIDIA NIM $0.10 /per million tokens $1.50 /per million tokens $10 /per million tokens Yes Prototyping and evaluation
Moonshot Kimi API $0.15 /per million tokens $2 /per million tokens $10 /per million tokens No Long-context Chinese/English applications and agentic workloads
OpenRouter Free /per million tokens $2 /per million tokens $75 /per million tokens Yes Experimentation and development with free open-source models
Amazon Bedrock $0.07 /per million tokens $3 /per million tokens $75 /per million tokens No AWS-native deployments needing multi-model routing
Perplexity API $1 /per million tokens + per-request fee $3 /per million tokens + per-request fee $15 /per million tokens + per-request fee No Cost-efficient web-grounded queries
xAI Grok API $0.20 /per million tokens $3 /per million tokens $30 /per million tokens No Developers integrating Grok into their applications
Together AI $0.03 /per million tokens / hour $4.99 /per million tokens / hour $9.95 /per million tokens / hour No Variable-volume API usage
Fireworks AI Free /per million tokens / hour $5.50 /per million tokens / hour $11 /per million tokens / hour No Variable-volume API usage
Google Gemini API Free /per million tokens $9 /per million tokens $18 /per million tokens Yes Prototyping and evaluation
Vercel AI SDK Free /per month (Vercel plan) $20 /per month (Vercel plan) $20 /per month (Vercel plan) Yes Individual developers using Vercel AI SDK for personal projects
Claude API $0.03 /per million tokens $37.52 /per million tokens $75 /per million tokens No Developers building AI-powered applications on Claude
DeepInfra $0.00 /per million tokens $41.25 /per million tokens $82.50 /per million tokens No Developers needing affordable inference for open-source and commercial models in production
OpenAI API $0.20 /per million tokens $135.10 /per million tokens $270 /per million tokens No High-volume, cost-sensitive API workloads

Category Summary

25

Products

Free

Avg Starting

$11

Avg Popular

10

Free Tiers

LLM API Providers Pricing FAQ

01 What are LLM API providers?

LLM API providers offer access to large language models via API, enabling developers to add AI capabilities to applications without hosting models themselves. They charge per token (input and output) and compete on price, speed, model selection, and features like web search grounding or RAG optimization.

02 How much do LLM APIs cost in 2026?

LLM API pricing is per-token and varies widely by model size and provider. Small models (under 8B parameters) cost $0.02-0.20 per million tokens on Groq, Together AI, and Mistral. Mid-range models cost $0.30-1.25 per million tokens (Gemini Flash, Mistral Medium). Frontier models (GPT-4o, Claude Sonnet, Gemini Pro) cost $1-5 per million input tokens. Perplexity Sonar adds per-request fees on top of token costs.

03 Which LLM API provider is cheapest?

For small open-source models, Groq (from $0.05/M tokens) and Mistral Nemo ($0.02/M) are the cheapest. For frontier-quality models, Mistral Large 3 at $0.50/$1.50 per million tokens is dramatically cheaper than GPT-4o or Claude Sonnet. Google Gemini Flash-Lite at $0.10/$0.40 per million tokens offers frontier quality at budget prices. Cohere Command R7B is cheapest for RAG at $0.037/M input tokens.

04 Which LLM API provider has the best free tier?

Google Gemini API offers the best free tier: 1,500 requests/day on Flash models through Google AI Studio with no credit card required. Groq offers a free API key with rate-limited access to all models. Mistral offers a free trial tier via La Plateforme. Cohere offers a free Trial API key for non-commercial use. Together AI and Fireworks AI offer $1 in free credits. Perplexity API has no free tier.

05 What is the difference between per-token and per-request LLM API pricing?

Most LLM APIs charge per token (input tokens + output tokens × rate). Perplexity API is unique in adding a per-request fee on top of token costs — every Sonar query incurs a $5-14 per 1,000 requests charge based on search context depth. This dual model reflects the cost of real-time web search bundled into each query. When comparing Perplexity to other APIs, you must add both token costs and request fees to get the true cost per query.