Data
LLM API cost calculator
Enter your monthly token volume once, compare every current model's bill side by side. The link updates as you type, so you can send someone the exact scenario instead of describing it.
Qwen3.7-Flash is the cheapest at $0.06/month - 491.1x cheaper than GPT-5.6 Cyber at $27.50/month.
| Model | Provider | Input cost | Output cost | Total/month |
|---|---|---|---|---|
| Qwen3.7-Flash | Alibaba (Qwen) | $0.03 | $0.03 | $0.06 |
| Command R7B | Cohere | $0.04 | $0.03 | $0.07 |
| Ministral 3 3B | Mistral | $0.10 | $0.02 | $0.12 |
| Ministral 3 8B | Mistral | $0.15 | $0.03 | $0.18 |
| Gemini 2.5 Flash-Lite | $0.10 | $0.08 | $0.18 | |
| GPT-6 Luna | OpenAI | $0.10 | $0.10 | $0.20 |
| Claude Haiku 5.5 | Anthropic | $0.10 | $0.10 | $0.20 |
| Ministral 3 14B | Mistral | $0.20 | $0.04 | $0.24 |
| Qwen3.8-Flash | Alibaba (Qwen) | $0.15 | $0.09 | $0.24 |
| Qwen3.8-Omni-Flash | Alibaba (Qwen) | $0.15 | $0.09 | $0.24 |
| Mistral Small 4 | Mistral | $0.15 | $0.12 | $0.27 |
| Command R (08-2024) | Cohere | $0.15 | $0.12 | $0.27 |
| GPT-5.6 Luna | OpenAI | $0.20 | $0.24 | $0.44 |
| Codestral | Mistral | $0.30 | $0.18 | $0.48 |
| DeepSeek V4.1 Flash | DeepSeek | $0.30 | $0.24 | $0.54 |
| Qwen3.7-Plus | Alibaba (Qwen) | $0.40 | $0.32 | $0.72 |
| Gemini 3.5 Flash-Lite | $0.30 | $0.50 | $0.80 | |
| Gemini 2.5 Flash | $0.30 | $0.50 | $0.80 | |
| Mistral Large 3 | Mistral | $0.50 | $0.30 | $0.80 |
| Grok Build 0.1 | xAI | $1.00 | $0.40 | $1.40 |
| Gemini 3.8 Flash promo | $0.75 | $0.75 | $1.50 | |
| Gemini 3.6 Flash promo | $0.75 | $0.75 | $1.50 | |
| Grok 4.3 | xAI | $1.25 | $0.50 | $1.75 |
| Grok 4.20 (reasoning) | xAI | $1.25 | $0.50 | $1.75 |
| Grok 4.20 (non-reasoning) | xAI | $1.25 | $0.50 | $1.75 |
| Grok 4.20 Multi-agent | xAI | $1.25 | $0.50 | $1.75 |
| Claude Haiku 4.5 | Anthropic | $1.00 | $1.00 | $2.00 |
| Gemini Robotics ER 2 Preview promo | $1.00 | $1.00 | $2.00 | |
| Gemini Robotics ER 2 Streaming Preview promo | $1.00 | $1.00 | $2.00 | |
| Muse Spark 1.3 | Meta | $1.25 | $0.85 | $2.10 |
| Muse Spark 1.2 | Meta | $1.25 | $0.85 | $2.10 |
| Muse Spark 1.1 | Meta | $1.25 | $0.85 | $2.10 |
| DeepSeek V4 Pro | DeepSeek | $1.32 | $0.79 | $2.11 |
| GLM 5.3 | Mistral | $1.40 | $0.88 | $2.28 |
| Mistral Medium 3.5 | Mistral | $1.50 | $1.50 | $3.00 |
| Grok 4.6 | xAI | $2.00 | $1.20 | $3.20 |
| Grok 4.7 | xAI | $2.00 | $1.20 | $3.20 |
| Grok 4.5 | xAI | $2.00 | $1.20 | $3.20 |
| Qwen3.8-Max | Alibaba (Qwen) | $2.00 | $1.20 | $3.20 |
| Gemini 2.5 Pro | $1.25 | $2.00 | $3.25 | |
| GPT-6.1 Sol | OpenAI | $2.00 | $2.00 | $4.00 |
| GPT-6 Sol | OpenAI | $2.00 | $2.00 | $4.00 |
| Claude Sonnet 5.5 | Anthropic | $2.00 | $2.00 | $4.00 |
| Claude Sonnet 5 | Anthropic | $2.00 | $2.00 | $4.00 |
| Gemini 4 Argon promo | $2.00 | $2.00 | $4.00 | |
| Qwen3.7-Max | Alibaba (Qwen) | $2.50 | $1.50 | $4.00 |
| GPT-5.6 Terra | OpenAI | $2.00 | $2.40 | $4.40 |
| Gemini 3.1 Pro Preview | $2.00 | $2.40 | $4.40 | |
| Command A | Cohere | $2.50 | $2.00 | $4.50 |
| Command R+ (08-2024) | Cohere | $2.50 | $2.00 | $4.50 |
| Claude Sonnet 4.6 | Anthropic | $3.00 | $3.00 | $6.00 |
| GPT-5.6 Sol promo | OpenAI | $4.00 | $4.00 | $8.00 |
| Claude Opus 5.5 | Anthropic | $4.00 | $4.00 | $8.00 |
| Muse Wonder | Meta | $4.00 | $4.00 | $8.00 |
| GPT-Rosalind restricted | OpenAI | $5.00 | $5.00 | $10.00 |
| GPT-Rosalind Discovery restricted | OpenAI | $5.00 | $5.00 | $10.00 |
| Claude Opus 5 | Anthropic | $5.00 | $5.00 | $10.00 |
| Claude Opus 4.8 | Anthropic | $5.00 | $5.00 | $10.00 |
| Claude Opus 4.7 | Anthropic | $5.00 | $5.00 | $10.00 |
| Claude Opus 4.6 | Anthropic | $5.00 | $5.00 | $10.00 |
| Claude Opus 4.5 | Anthropic | $5.00 | $5.00 | $10.00 |
| ChatGPT (chat-latest) | OpenAI | $5.00 | $6.00 | $11.00 |
| GPT-6 Astra | OpenAI | $10.00 | $10.00 | $20.00 |
| Claude Fable 5.1 | Anthropic | $10.00 | $10.00 | $20.00 |
| Claude Mythos 5.1 verification required | Anthropic | $10.00 | $10.00 | $20.00 |
| Claude Fable 5 | Anthropic | $10.00 | $10.00 | $20.00 |
| Claude Mythos 5 verification required | Anthropic | $10.00 | $10.00 | $20.00 |
| GPT-5.6 Cyber restricted | OpenAI | $12.50 | $15.00 | $27.50 |
6 of these estimates use a promotional price: GPT-5.6 Sol, Gemini 4 Argon, Gemini 3.8 Flash, Gemini 3.6 Flash, Gemini Robotics ER 2 Preview and Gemini Robotics ER 2 Streaming Preview. Each model page shows the date and, where the provider publishes it, the list price; the calculator never fills in a list price the provider has not printed.
Prices are the same verified numbers as /api-pricing/ - see that page's methodology. Cache hit rate applies only to input tokens, at each model's own cached-input rate; where a model publishes no cache price, the cached share is charged at its input price. Models with no published USD price aren't included - there's nothing to multiply.
Analysis
What the dataset shows when it is read across providers.
- How LLM API pricing worksThe guide: tokens, cache reads and writes, long-prompt tiers, Batch and Fast mode, region, peak hours, promotions and hosts, each on a real row of the dataset.
- Gemini 4 Argon vs Muse Wonder: Same Price, Until Nov 30$400 vs $800 a month for 100M input and 20M output tokens: Gemini 4 Argon until November 30, 2026, against Muse Wonder at the same $4 / $20 list price.
- Claude Sonnet 5.5 Cache Reads Fall to $0.10: The Bill Math$0.20 to $0.10 per million cached tokens: Claude Sonnet 5.5's October 7, 2026 cut saves $5 to $9.50 a month on 100M input tokens at 50% to 95% cache hits.
- Gemini Flash Pricing: Every Generation From 2.0 to 3.8$18 to $150 a month for 100M input and 20M output tokens: every current Gemini Flash and Flash-Lite price, the deprecated ones and the January 1, 2027 increase.
- Same Open Model, Different Host: What a Month Costs100M input and 20M output tokens a month on the cheapest and priciest host of six open models: $16.40 or $124.80 for Llama 3.3 70B. Prices of October 12, 2026.
- Claude Haiku 5.5 Charges Five Times More Above 100,000 Tokens: What One Request Costs on Each Side of the LineClaude Haiku 5.5, launched October 7, 2026, bills 5x once a prompt passes 100,000 tokens. Cost per request, cache, Batch and rivals as of October 11, 2026.
- Claude Sonnet 4.5 Retires on November 30, 2026: What Moving to Claude Sonnet 5.5 Does to the BillClaude Sonnet 4.5 retires on November 30, 2026. Anthropic names Sonnet 5.5: prices, cache, Batch, the 30% token change and the bill, read October 11, 2026.
- OpenAI Shuts Down GPT-4, GPT-4 Turbo, GPT-3.5 Turbo, o1, o1-pro and o3-mini on October 23, 2026: the Replacements and What They CostOpenAI shuts down GPT-4, GPT-4 Turbo, GPT-3.5 Turbo, o1, o1-pro and o3-mini on October 23, 2026: the named replacements and their prices, read October 5.
- Same List Price, Different Bill: Five Pairs of LLM APIs Where the Workload Decides What You PayClaude Sonnet 5.5 and GPT-6.1 Sol both list at $2 / $10, yet a long-document workload costs $250 on one and $475 on the other. Five pairs, assumptions shown.
- Prompt Caching Is Not 10% Everywhere: What a Cache Hit Costs Across Eight Providers49 of the 64 current priced models publish a cache-hit price; four providers charge 10% of input. Anthropic, DeepSeek, xAI, Alibaba and Meta differ, with dates.
- The Second Price List: What Batch, Flex, Priority and Data-Sharing Discounts Cost Across Seven ProvidersHalf price to wait, double to skip the queue, 12.5× less input to share data: the second price lists of seven LLM providers, read by hand on September 16, 2026.
- Five Things Decide What You Pay for a Model, and Only One of Them Is the ModelHost, time of day, promotions, region and request size move the price of the same model by 1.2× to 10×. Five verified cases, with dates and sources.
- OpenAI's Pricing Page Has Four Tabs That Look the Same in Plain Text. We Published the Wrong One for Seven Days.From September 3 to 11, 2026 this site listed GPT-5.6 Sol, Terra and Luna at half their price, read from the Batch tab. What went wrong and what caught it.