Mercury 2
Mercury 2 (inception/mercury-2) is a language model from Inception on the OceanToken API at $0.25 per 1M input tokens and $0.75 per 1M output tokens, with a 128K-token context window and reasoning, tool calling, structured outputs.
Mercury 2 is an extremely fast reasoning LLM, and the first reasoning diffusion LLM (dLLM).
Create an account or sign in to OceanToken.Context window
128K tokens
Input
text
Output
text
BUILD WITH IT
- Multi-step reasoning
- Tool-using agents
- Structured outputs (JSON)
Model ID inception/mercury-2
Base URL https://api.oceantoken.ai/v1
MAKE IT YOURS
One account. Your next idea.
- Input
- $0.25 / 1M tokens
- Output
- $0.75 / 1M tokens
- Cached input
- $0.025 / 1M tokens
Official price as of October 18, 2026. The console always shows the current price.
Open OceanToken ↗Specs, request sample and alternatives in the docs ↗Frequently asked questions
Mercury 2 is an extremely fast reasoning LLM, and the first reasoning diffusion LLM (dLLM).
Mercury 2 costs $0.25 per 1M input tokens and $0.75 per 1M output tokens. Cached input costs $0.025 per 1M tokens. These are official prices as of October 18, 2026, charged per use to your prepaid balance. The console always shows the current price.
Mercury 2 has a context window of 128K tokens (128,000 tokens).
Mercury 2 supports tool calling, structured outputs and reasoning. It takes text input and returns text. The catalog does not list image input (vision) for it.
Send requests to https://api.oceantoken.ai/v1/chat/completions with the model ID inception/mercury-2 and your OceanToken API key. The API is OpenAI-compatible, so an OpenAI SDK needs only the base URL https://api.oceantoken.ai/v1 and your key. The Responses API and the Anthropic Messages API (/v1/messages) work too. The same OceanToken API key works for every model your account can use. Full reference: docs.oceantoken.ai.
OceanToken is prepaid. Open Credits in the console, choose an amount and pay by card on Stripe's hosted checkout page (Link works too; Alipay and WeChat Pay are not available). Each top-up is between $10 and $100,000, and your balance updates a few seconds after payment. Have a trial code? Redeem it on the same page.
Purchased credits are valid for 12 months from the date of purchase. Credits from trial codes, promotions or gifts may have a shorter validity. All purchases are final and non-refundable, except where the law requires a refund. Section 6 of the Terms of Service has the details.
Not if the request never ran: a request refused for an insufficient balance or by a safety check, or one whose provider fails before returning any output, is not charged. A video job that fails releases the amount it held. If a request breaks off after the model has started producing output, for example a stream cut off part-way, you pay for the tokens that were processed and generated for it.
There are two ways to buy. Pay-as-you-go is self-serve: sign up, add prepaid credits and use every model in the catalog at its official price. Enterprise customers get agreement pricing based on expected usage: email support@oceantoken.ai.