Hi - I answer from the OpenSmartRoute documentation: routing, the API, plans and quotas, self-hosting. Ask away, or open a support ticket if you need a person.
Grounded in the docs - follow a source before acting on it.
Gemma 3 4B - Model - OpenSmartRoute
Modelv1.0.0
Gemma 3 4B
Gemma 3 introduces multimodality, supporting vision-language input and text outputs. It handles context windows up to 128k tokens, understands over 140 languages, and offers improved math, reasoning,
Reference model card from the OpenRouter listing - model google/gemma-3-4b-it. Prices are per million tokens as listed; ratings and installs below are from this marketplace.
Gemma 3 4B
Gemma 3 introduces multimodality, supporting vision-language input and text outputs. It handles context windows up to 128k tokens, understands over 140 languages, and offers improved math, reasoning, and chat capabilities,...
Facts
Vendor
Google
Context window
131,072 tokens
Max output
16,384 tokens
Input price
$0.05 / 1M tokens
Output price
$0.10 / 1M tokens
Input
text, image
Output
text
Tool calling
no
Structured outputs
yes
Reasoning
no
Open weights
google/gemma-3-4b-it
Endpoint: https://openrouter.ai/api/v1 (OpenAI-compatible), model google/gemma-3-4b-it
Use it
Copy one of these into your project. Installing also returns the manifest and these snippets.
# after Install: the listing is in your workspace's routing pool - nothing else to configure
curl -s -X POST https://api.opensmartroute.ai/api/v1/route -H 'Authorization: Bearer $OSR_API_KEY' -H 'Content-Type: application/json' -d '{"text": "...", "plan": true}'
# or pin it on the OpenAI-compatible endpoint: {"model": "model-google-gemma-3-4b-it", ...}
Manifest
An Open Capability Manifest: the router reads it to know what this does, what it costs and when to pick it.
model-google-gemma-3-4b-it.ocm.jsonjson
{
"ocm": "1",
"id": "model-google-gemma-3-4b-it",
"kind": "llm",
"name": "Gemma 3 4B",
"description": "Gemma 3 introduces multimodality, supporting vision-language input and text outputs. It handles context windows up to 128k tokens, understands over 140 languages, and offers improved math, reasoning, and chat capabilities,...",
"publisher": "Google",
"version": "1.0.0",
"capabilities": {
"domains": [
"general"
],
"tags": [
"llm",
"google",
"openrouter",
"open-weights",
"image",
"models"
],
"languages": [
"en"
],
"modalities": [
"text",
"image"
],
"supports_tools": false,
"supports_streaming": true,
"context_window": 131072
},
"quality_prior": 0.6,
"examples": [
"Gemma 3 introduces multimodality, supporting vision-language input and text outputs. It handles context windows up to 128k tokens, understands over 140 languages, and offers improved math, reasoning, and chat capabilities,..."
],
"primary": false,
"metadata": {
"source": {
"provider": "models",
"ref": "1741905510",
"url": "https://openrouter.ai/google/gemma-3-4b-it",
"key": "google/gemma-3-4b-it",
"catalogue": "https://openrouter.ai/api/v1"
},
"model": "google/gemma-3-4b-it",
"pricing": {
"input_usd_per_1m": 0.05,
"output_usd_per_1m": 0.1
},
"max_output_tokens": 16384,
"output_modalities": [
"text"
],
"hugging_face_id": "google/gemma-3-4b-it",
"created": 1741905510,
"benchmarks": {
"coding_index": 2.7,
"hub_downloads": 1807784,
"hub_downloads_total": 26185186,
"hub_likes": 1497,
"hub_trending": 6
}
},
"cost": {
"usd_per_1k_tokens": 0.000075
},
"endpoints": [
{
"protocol": "openai",
"url": "https://openrouter.ai/api/v1"
}
]
}
Fetch it by URL: GET /api/v1/registry/model-google-gemma-3-4b-it/manifest?version=1.0.0
Reviews
Star ratings from people who tried it. One review per account; edit yours any time.
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