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Model

Rocinante 12B

TheDrummer Rocinante 12B — pricing, 33k context window, API cost calculator and alternatives.

By TheDrummer

🔧 Tools Function calling — the model can structure responses as tool calls with typed arguments. Reliability differs between providers. Glossary → {} JSON Forces output to be valid JSON, reducing parse errors. Some providers also let you constrain to a schema. Glossary →
Context window Maximum tokens (input + output) the model can process in a single request. Glossary →
32,768
tokens
Input price What the model charges for tokens you send (prompt + context). Glossary →
$0.1700
per 1M tokens
Output price What the model charges for tokens it generates. Usually 3–5× pricier than input. Glossary →
$0.4300
per 1M tokens

Specs

Provider
TheDrummer
Slug
thedrummer/rocinante-12b
Capabilities
tools, json_mode

Pricing freshness

Tier
standard
Currency
USD
As of
2026-05-08 17:08 UTC
Estimate monthly cost → See alternatives to Rocinante 12B →

Pricing history

Tracking Rocinante 12B pricing since 2026-05-08. We'll plot the chart here once it changes.

Quickstart — call Rocinante 12B from your app

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -d '{
    "model": "thedrummer/rocinante-12b",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Official docs: https://openrouter.ai/docs

Related models

Similar capabilities, context window, and price tier — drawn from across the catalog so you can compare alternatives in one click.

Frequently asked questions

What is Rocinante 12B?

Rocinante 12B is a large language model API from TheDrummer with a 33k-token context window. It costs $0.17 per 1M input tokens and $0.43 per 1M output tokens.

How much does Rocinante 12B cost?

Rocinante 12B is priced at $0.17 per 1M input tokens and $0.43 per 1M output tokens via the TheDrummer API. A 50/50 input/output workload of 1M total tokens costs about $0.3.

What is the context window of Rocinante 12B?

Rocinante 12B supports up to 33k tokens of context per request — roughly 66 pages of English text or 4096 lines of code at a typical density.

Does Rocinante 12B support vision, tool use, or JSON mode?

Rocinante 12B supports tool/function calling and structured JSON mode. It does not support image input (vision).

Who makes Rocinante 12B?

Rocinante 12B is built and operated by TheDrummer. Pricing, context window, and capabilities on this page are refreshed nightly from TheDrummer's public catalog.

Can I self-host Rocinante 12B?

Rocinante 12B is API-only — its weights are not publicly distributed by TheDrummer, so it cannot be self-hosted today.

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