Particle 1 API

Other's Particle 1, through an OpenAI-compatible API. Providers quote it on an open exchange, and each request goes to the offer with the lowest estimated charge that meets your rules.

Facts

Model name
particle-1
Maker
Other
Context window
1M tokens
Input price
$0.250 per million tokens
Output price
$0.998 per million tokens
Providers
1 independent provider
Regions
us

Providers

Request

curl https://router.inference.ai.exchange/v1/chat/completions \
  -H "Authorization: Bearer $LIQUID_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "particle-1",
    "messages": [{"role":"user","content":"Say hello."}]
  }'

Questions

What is Particle 1?
Particle 1 is a model from Other.
How much does Particle 1 cost?
Offers now ask $0.250 per million input tokens and $0.998 per million output tokens. A job pays for the tokens it uses. The exchange picks the cheapest eligible offer.
What is the context length of Particle 1?
The largest offer takes 1,048,576 input tokens. A smaller offer can take less. The exchange skips an offer that cannot take your message.
What can Particle 1 do?
Its providers list Vision, Reasoning effort, JSON object, JSON schema, Frequency penalty, Logit bias, Log probabilities, Min-p sampling, Presence penalty, Repetition penalty, Seed, Stop sequences, Top-k sampling, Top-p sampling, Text, Tools.
What inputs and outputs does Particle 1 support?
Text · Images → Text.
Which providers serve Particle 1?
1 independent provider quote it now, with 1 offer. The table above ranks them by the cost of a typical job.
How do I call Particle 1?
Send "particle-1" as the model in an OpenAI or Anthropic request. The API section links to setup steps for each client.
When was Particle 1 listed?
The exchange first listed it on 11/1/2026. This is not its release date.

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