Claude, GPT and Gemini API prices: official vs Half Off Dev
Price per million tokens for every model, the vendor’s list price next to what you pay here. Same models, same native APIs.
| Model | Input, official | Input, Half Off Dev | Output, official | Output, Half Off Dev | You save |
|---|---|---|---|---|---|
| Claude Fable 5.1 Anthropic | $10.00 | $5.00 | $50.00 | $25.00 | 50% |
| Claude Fable 5 Anthropic | $10.00 | $5.00 | $50.00 | $25.00 | 50% |
| Claude Opus 5 Anthropic | $5.00 | $2.50 | $25.00 | $12.50 | 50% |
| Claude Opus 4.8 Anthropic | $5.00 | $2.50 | $25.00 | $12.50 | 50% |
| Claude Opus 4.7 Anthropic | $5.00 | $2.50 | $25.00 | $12.50 | 50% |
| Claude Opus 4.6 Anthropic | $5.00 | $2.50 | $25.00 | $12.50 | 50% |
| Claude Opus 4.5 Anthropic | $5.00 | $2.50 | $25.00 | $12.50 | 50% |
| Claude Opus 5.5 Anthropic | $4.00 | $2.00 | $20.00 | $10.00 | 50% |
| Claude Sonnet 4.6 Anthropic | $3.00 | $1.50 | $15.00 | $7.50 | 50% |
| Claude Sonnet 4.5 Anthropic | $3.00 | $1.50 | $15.00 | $7.50 | 50% |
| Claude Sonnet 5.5 Anthropic | $2.00 | $1.00 | $10.00 | $5.00 | 50% |
| Claude Sonnet 5 Anthropic | $2.00 | $1.00 | $10.00 | $5.00 | 50% |
| Claude Haiku 4.5 Anthropic | $1.00 | $0.50 | $5.00 | $2.50 | 50% |
| Claude Haiku 5.5 Anthropic | $0.10 | $0.05 | $0.50 | $0.25 | 50% |
| Gemini 3.1 Pro Google | $2.00 | $1.00 | $12.00 | $6.00 | 50% |
| Gemini 4 Argon Google | $2.00 | $1.00 | $10.00 | $5.00 | 50% |
| Gemini 3.5 Flash Google | $1.50 | $0.75 | $9.00 | $4.50 | 50% |
| Gemini 3.8 Flash Google | $0.75 | $0.375 | $3.75 | $1.88 | 50% |
| Gemini 3.6 Flash Google | $0.75 | $0.375 | $3.75 | $1.88 | 50% |
| Gemini 3 Flash Google | $0.50 | $0.25 | $3.00 | $1.50 | 50% |
| GPT-6 Astra OpenAI | $10.00 | $5.00 | $50.00 | $25.00 | 50% |
| GPT-5.6 Terra OpenAI | $2.00 | $1.00 | $12.00 | $6.00 | 50% |
| GPT-6.1 Sol OpenAI | $2.00 | $1.00 | $10.00 | $5.00 | 50% |
| GPT-6 Sol OpenAI | $2.00 | $1.00 | $10.00 | $5.00 | 50% |
| GPT-5.6 Sol OpenAI | $2.00 | $1.00 | $10.00 | $5.00 | 50% |
| GPT-5.6 Luna OpenAI | $0.20 | $0.10 | $1.20 | $0.60 | 50% |
USD per 1M tokens. Cache reads and writes get the same discount. LLM API cost calculator · Model marketplace
Frequently asked questions
Where does the official price come from?
It is the model vendor’s list price per million tokens, as stored in the catalog the API bills from. The Half Off Dev price is that list price times the discount.
Does the discount apply to cached input and output?
Yes. Input, output, cache reads and cache writes are all billed at the Half Off Dev price shown here.
Why are some models missing?
Models with no official list price to compare against are sold at full price and not listed here. The model marketplace shows them.