Cheapest LLM API 2026
Every LLM API ranked by price. Find the cheapest model for coding, chat, classification, and high-volume workloads.
Pricing verified · Updated monthly · 34 models from 10 providers
Full Price Ranking: All 34 Models
Sorted by combined input + output cost per 1M tokens. Cheapest first.
| # | Model | Provider | Tier | Input/1M | Output/1M | Combined | Context |
|---|
Cheapest Model by Use Case
Different workloads have different needs. Here's the cheapest model that's actually good for each task.
Chat & Conversational AI
Natural conversation quality at 1/100th the cost of GPT-5.5. 1M context window handles long conversations. Available via DeepSeek API or Together.ai.
Code Generation & Debugging
Strong coding performance at budget prices. For higher quality code, step up to DeepSeek V4 Pro ($0.44/$0.87) or GPT-5 mini ($0.25/$2.00).
Classification & Extraction
The absolute cheapest option. Perfect for simple classification, entity extraction, and structured data tasks where quality requirements are moderate.
Summarization
Excellent summarization quality with 1M context window. Handles long documents, articles, and transcripts at rock-bottom prices.
High-Volume Batch Processing
Symmetrical pricing means you pay the same for input and output. Ideal for batch jobs where you process large amounts of text. Open-source model, no vendor lock-in.
Reasoning & Analysis
Budget model with surprisingly strong reasoning. For critical analysis, step up to Claude Sonnet 4.6 ($3/$15) or GPT-5 ($1.25/$10).
Long-Context (100K+ tokens)
Cheapest model with a 1M context window. Perfect for processing long documents, codebases, or conversation histories without chunking.
What Will It Actually Cost?
Real-world monthly costs at different usage levels. All assume 2,000 input + 500 output tokens per request.
Hobby: 100 requests/day
Startup: 1,000 requests/day
Scale: 10,000 requests/day
Save Even More: Batch & Streaming Modes
Many providers offer discounts for batch processing or charge differently for streaming.
Batch Mode (50% off)
OpenAI and Anthropic offer batch APIs at 50% off standard pricing. If your workload doesn't need real-time responses, batch mode cuts costs in half. Use our calculator to compare standard vs batch pricing.
Streaming (+15% output)
Streaming responses cost ~15% more on output tokens due to overhead. If you don't need streaming, disable it to save. Our calculator shows both modes.
Calculate Your Exact Cost
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Frequently Asked Questions
What is the cheapest LLM API in 2026?
Gemini 2.0 Flash Lite is the cheapest LLM API at $0.075/1M input tokens and $0.30/1M output tokens, with a 1M token context window. For open-source models, Llama 3.1 8B via Together.ai costs $0.10/$0.10 per 1M tokens.
What is the cheapest LLM API for coding?
DeepSeek V4 Flash at $0.14/$0.28 per 1M tokens offers the best balance of price and code quality. GPT-5 mini at $0.25/$2.00 is a strong alternative with better instruction following. Both support 1M+ context windows.
How much cheaper are budget LLM APIs vs premium?
Budget models (Gemini Flash, DeepSeek V4 Flash, Llama 4 Scout) cost 10-50x less than premium models (GPT-5.5, Claude Opus 4.8). A typical workload of 1000 requests/day with 2000 input + 500 output tokens costs $3-10/month on budget models vs $150-750/month on premium.
Are cheap LLM APIs good enough for production?
For many production workloads — classification, extraction, summarization, simple chat — budget models like Gemini Flash and DeepSeek V4 perform excellently. For complex reasoning, coding, or nuanced writing, mid-tier models (Claude Sonnet 4.6, GPT-5) offer better quality at moderate cost.
Which provider has the cheapest LLM APIs overall?
Google (Gemini Flash Lite at $0.075/$0.30) and DeepSeek (V4 Flash at $0.14/$0.28) are the cheapest providers. Meta's Llama models via Together.ai are also extremely competitive at $0.10/$0.10 for Llama 3.1 8B.
Can I use batch mode to save even more?
Yes. OpenAI and Anthropic offer batch APIs at 50% off standard pricing. If your workload doesn't need real-time responses, batch mode can cut your costs in half. Use our calculator to compare.