Anthropic API
Focused Claude API for text, code, and agent workloads.
| Model | Input | Output | Cached | Cache write |
|---|---|---|---|---|
| Fable 5.1 | $10.00 | $50.00 | $0.25 | $12.50 |
| Opus 5.5 | $4.00 | $20.00 | $0.20 | $5.00 |
| Sonnet 5.5 | $2.00 | $10.00 | $0.10 | $2.50 |
| Haiku 4.5 | $1.00 | $5.00 | $0.10 | $1.25 |
Subscription comparisons
API and cloud AI
Token pricing and model access for your own workflows.
Price sources differ in age by provider: checked between October 6, 2026 and October 27, 2026. Each service shows its own check date; confirm old or uncertain prices with the provider. Editorial order is not a live price ranking.
APIs
For your own apps, scripts and agents. You pay per use.
API list prices per 1M tokens. Word count depends on language, formatting and the tokenizer; output, cache and tools are billed separately. i Input is the text you send, output is the reply. “Cached” applies when the same long prefix (such as a system prompt) is reused.
OpenAI API
Broad developer platform for multimodal apps and automation.
| Model | Input | Output | Cached |
|---|---|---|---|
| GPT-6 Astra | $10.00 | $50.00 | $1.00 |
| GPT-6.1 Sol | $2.00 | $10.00 | $0.10 |
| GPT-6 Luna | $0.10 | $0.50 | $0.01 |
Gemini API
Multimodal Google API with an attractive entry point and large context windows.
| Model | Input | Output | Cached |
|---|---|---|---|
| Gemini 3.1 Pro | $2.00 | $12.00 | $0.20 |
| Gemini 3.8 Flash | $0.75 | $3.75 | $0.075 |
| Gemini 3.1 Flash-Lite | $0.25 | $1.50 | $0.025 |
OpenRouter
Unified API for an especially broad model selection.
| Model | Input | Output | Cached |
|---|---|---|---|
| Gemini Flash Image | $0.50 | – | – |
Some models in this selection have no listed input or output rate. A single rate is not a complete per-request quote; check the original provider tariff.
Mistral API
European API alternative with efficient open and proprietary models.
| Model | Input | Output | Cached |
|---|---|---|---|
| Mistral Small | $0.15 | – | – |
Some models in this selection have no listed input or output rate. A single rate is not a complete per-request quote; check the original provider tariff.
DeepSeek API
Very cheap API; outside peak hours everything costs half.
| Model | Input | Output | Cached |
|---|---|---|---|
| DeepSeek Flash | $0.30 | $1.20 | $0.006 |
| DeepSeek V4 Pro | $1.32 | $3.96 | $0.044 |
For regular chat, a subscription can offer more predictable spending. Apps and agents are commonly billed per API use; a chat plan does not include API credits.