the chart
Particle AI

Particle-1

particle-ai/particle-1

about 0.07¢ a message

A typical message: about 500 tokens you send and 500 it writes.

$0.275 per 1M tokens you send$1.10 per 1M tokens it writesreads 1M tokens at once

Published capabilitiesreads imagestool callingjson schema
Chat with Particle-1Call it from codeLock this price

About

Particle-1 is a token-efficient agentic coding model from Particle AI, post-trained on DeepSeek V4.1 Flash. It is suited for software engineering work such as terminal workflows, codebase changes, and data...

In Particle AI's words.

Try it here

Whatever it says appears here.

Published facts

What the upstream's catalog says about this world, with its price as billed here.

Context window
1,048,576 tokens
Longest answer
131,072 tokens
Input, per 1M tokens
$0.275upstream $0.25
Output, per 1M tokens
$1.10upstream $1.00
Cached input, per 1M
$0.033upstream $0.03
Margin
+10%
Reads
text and images
First listed
2026-10-28

Price and latency history as JSON: GET /api/planet/history?id=particle-ai/particle-1.

Measured here

Call it

One OpenAI compatible endpoint, this model's id, and an am_live_ key from the dashboard. Or try it in chat first, no key needed.

curl https://useantimatter.com/v1/chat/completions \
  -H "Authorization: Bearer $ANTIMATTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "particle-ai/particle-1", "messages": [{"role": "user", "content": "Hello"}]}'

Everything else is in the docs.

Embed this

A badge with this world's live price per million tokens, as billed here, for a README or a site. It links back to this page.

Particle-1 price on Antimatter
<a href="https://useantimatter.com/planet/particle-ai/particle-1"><img src="https://useantimatter.com/api/badge/price?id=particle-ai%2Fparticle-1" alt="Particle-1 price on Antimatter" height="28"></a>

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