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Particle AI: Particle-1 API

particle-ai/particle-1Text

Call Particle AI: Particle-1 through UberLLM’s OpenAI-compatible API, from $0.10/M input and $0.40/M output, served by third-party providers. Made by Particle AI. 1,048,576 token context. No UberLLM fee on requests. Adding credit by card costs 5.5% + $0.50.

Also sold directly by: OpenRouter. Here, sellers serve it through their own provider accounts. Where the capacity comes from

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How much does the Particle AI: Particle-1 API cost?

On October 31, 2026, Particle AI: Particle-1 costs $0.10 per million input tokens and $0.40 per million output tokens through UberLLM. 2 sellers on the market can serve it. It reads up to 1,048,576 tokens of context. Every request is listed with its cost in the Activity log. UberLLM adds no fee to these prices, and a request that fails is not billed.

Particle AI: Particle-1 pricing

OpenRouter charges $0.05 / $0.50 per 1M input / output tokens.

Price now · per 1M tokens
Input
$0.10
Output
$0.40
Cached input
$0.00148
% off list
51% off
73% of input served from cache
Official price · per 1M tokens
Input
$0.05
Output
$0.50
Cached input
$0.003
Sell Particle AI: Particle-1 on UberLLM →

Prices as of 18:00 UTC.

Each request is sent to an available third-party provider for this model and retried if the provider fails before it starts answering. No UberLLM fee on requests. Adding credit by card costs 5.5% + $0.50.

How to use Particle AI: Particle-1 with the OpenAI SDK

With the OpenAI SDK, set the base URL to UberLLM and call Particle AI: Particle-1 with your existing code. Anthropic SDKs work against https://api.uberllm.dev/v1/messages.

python
from openai import OpenAI

client = OpenAI(
    base_url="https://api.uberllm.dev/v1",
    api_key="ull_your_key_here",
)

resp = client.chat.completions.create(
    model="particle-ai/particle-1",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)

Particle AI: Particle-1 API FAQ

Can I cap what a Particle AI: Particle-1 request costs?

Yes. A request costs what its provider charged; the listed price is $0.10 input and $0.50 output per million tokens, and a request can cost more when the cheaper providers are busy. Send provider.max_price with your most per million tokens: the request only goes to providers at or under it and is never billed above it. Each request is listed with its cost in Activity.

How do I call Particle AI: Particle-1 via API?

Use any OpenAI-compatible SDK: set the base URL to https://api.uberllm.dev/v1, your UberLLM API key, and model "particle-ai/particle-1". Anthropic SDKs work via https://api.uberllm.dev/v1/messages.

Is Particle AI: Particle-1 OpenAI-compatible on UberLLM?

Yes. Every model on UberLLM, including Particle AI: Particle-1, is served through one OpenAI-compatible endpoint. Set the base URL and key in your existing client.

Compared with other providers: Best OpenRouter alternatives