Find the most cost-effective AI API for your project. Compare free tiers, budget models from $0.075 per million tokens, and smart routing strategies to cut your LLM costs by 10-30x.
Ranked by input price per million tokens. All available through SkillBoss with zero markup.
The absolute cheapest LLM API available. With a 1M context window and input costs under 8 cents per million tokens, Gemini Flash is ideal for high-volume chatbots, classification tasks, and any workload where cost matters more than peak reasoning quality.
A strong budget option from the European AI leader. Mistral Small offers GDPR-compliant hosting, 128K context, and competitive quality for structured tasks like summarization, translation, and data extraction.
OpenAI's budget model punches above its weight. Excellent for classification, light coding, and any task where you want OpenAI ecosystem compatibility without the GPT-4o price tag.
Meta's open-source offering matches GPT-4o mini on price and adds the option to self-host for complete data privacy. Great for teams with strict data residency requirements.
The best coding model at a budget price. DeepSeek V3 rivals Claude Sonnet and GPT-4o on code generation benchmarks at a fraction of the cost. The go-to choice for developer tools and AI coding assistants.
All budget and mid-tier models sorted by input price. Zero markup through SkillBoss.
| Model | Provider | Input /1M | Output /1M | Context | Tier | Best For |
|---|---|---|---|---|---|---|
| Gemini 2.5 Flash | $0.075 | $0.30 | 1M | Mid-Tier | Speed, cost efficiency | |
| Mistral Small | Mistral | $0.10 | $0.30 | 128K | Budget | European compliance |
| GPT-4o mini | OpenAI | $0.15 | $0.60 | 128K | Mid-Tier | Light tasks, classification |
| Llama 4 Scout | Meta | $0.15 | $0.60 | 128K | Mid-Tier | Open source, privacy |
| DeepSeek V3 | DeepSeek | $0.27 | $1.10 | 128K | Budget | Best value coding |
| DeepSeek R1 | DeepSeek | $0.55 | $2.19 | 128K | Budget | Reasoning on a budget |
| Claude Haiku 3.5 | Anthropic | $0.80 | $4.00 | 200K | Mid-Tier | Fast tasks, chat |
Prices as of April 2026. Check the model catalog for real-time pricing.
See how much you would actually spend per month with different models and usage levels.
~30M tokens/month (10K conversations). Budget-optimized model selection.
~2M tokens/month (casual daily use for coding help).
~500M tokens/month (production workloads, multiple teams).
You do not need to pay anything to start using LLM APIs. Here are the best strategies for free access:
Sign up at skillboss.co/console and receive free credits immediately. No credit card required. Use them on any of 100+ models including Claude, GPT, Gemini, and DeepSeek.
Maximize your free credits and minimize costs with these strategies:
SkillBoss provides an OpenAI-compatible API. Switch models by changing the model name — no new API keys needed.
api.skillboss.co/v1
Switch between 100+ models instantly.
curl https://api.skillboss.co/v1/chat/completions \
-H "Authorization: Bearer $SKILLBOSS_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "deepseek/deepseek-chat",
"messages": [{"role": "user", "content": "Hello!"}]
}'The cheapest LLM API in 2026 is Google Gemini 2.5 Flash at $0.075 per million input tokens and $0.30 per million output tokens. For higher quality at a budget price, DeepSeek V3 costs $0.27/$1.10 per million tokens and rivals GPT-4o for coding tasks. Access both through SkillBoss at api.skillboss.co/v1 with zero markup.
SkillBoss offers free credits on signup so you can test any of 100+ models at no cost. Some providers offer limited free tiers, but SkillBoss free credits work across all models — Claude, GPT, Gemini, DeepSeek, Llama, and more — giving you the flexibility to find the best model before committing.
DeepSeek V3 is the cheapest high-quality coding API at $0.27 per million input tokens. It performs comparably to GPT-4o on coding benchmarks at roughly 10x lower cost. For lighter tasks, GPT-4o mini ($0.15/1M) and Gemini 2.5 Flash ($0.075/1M) are even cheaper options.
Use SkillBoss to access all models through one API key with zero markup. Route simple tasks to budget models like Gemini Flash or DeepSeek V3, and reserve premium models like Claude Sonnet for complex work. Prompt caching, shorter prompts, and batching requests also reduce costs significantly.
OpenAI GPT-4o costs $2.50/$10 per million tokens. Budget alternatives are 10-30x cheaper: Gemini 2.5 Flash is $0.075/$0.30 and DeepSeek V3 is $0.27/$1.10. Through SkillBoss, you can use GPT-4o for complex tasks and automatically fall back to cheaper models for simple ones — all with one API key.
Free credits on signup. Zero markup. One API key for 100+ models.
AI Agents
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1. Get API key at skillboss.co/console
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