Fusion

Name: Openrouter Fusion
Availability: InStock
Author: Openrouter

openrouter/fusion

Fusion turns your prompt into a small multi-model deliberation. A panel of expert models (see below) analyzes your prompt in parallel with web search and web fetch enabled, then a judge model synthesizes their responses into a structured analysis — consensus, contradictions, partial coverage, unique insights, and blind spots — and writes the final answer from it.

Use in agent Get API key

Input price: $0.00USD / 1M tokens
Output price: $0.00USD / 1M tokens
Context window: N/A
Max output: 128K

Try the model

Playground

Open playground

Input⌘ / Ctrl + Enter

Try a prompt

Prompt

128K max output

Input$0.0000/MOutput$0.0000/M

OutputReady

Your response will appear here

Choose an example or write a prompt, then click Run.

Model card

Specifications

Pricing

Input: $0 / 1M tokens
Output: $0 / 1M tokens

Context & modalities

Max output: 128,000 tokens
Input: Text
Output: Text

Capabilities

Chat: Supported
Vision: Not supported
Reasoning: Not supported
Structured output: Not supported
Function calling: Not supported
Audio input: Not supported

Access

Provider: Openrouter
Model ID: openrouter/fusion
Execution: sync
Base URL: https://api.sandbase.ai
API: Chat Completions API
Endpoint: /v1/chat/completions

Start building

Send your first request

OpenAI-compatible endpoint with unified authentication and usage tracking.

Production API

Chat Completions API endpoint

https://api.sandbase.ai/v1/chat/completions

Model ID

openrouter/fusion

# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
  -X POST "https://api.sandbase.ai/v1/chat/completions" \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  --data-binary @- <<'SANDBASE_JSON'
{
  "model": "openrouter/fusion",
  "messages": [
    {
      "role": "user",
      "content": "Hello"
    }
  ],
  "max_tokens": 2048
}
SANDBASE_JSON
)
printf '%s\n' "$result"

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All language models

Model	Context	Input / 1M	Output / 1M	Released
FusionThis model `Openrouter`	—	$0.00	$0.00	May 12, 2026

Questions

FAQ

How do I call Openrouter Fusion through SandBase?

Create a SandBase API key, then send requests with the model ID "openrouter/fusion" to Chat Completions API (/v1/chat/completions) at https://api.sandbase.ai. The request examples on this page show the exact payload.

How much does Openrouter Fusion cost?

$0 per 1M input tokens and $0 per 1M output tokens, billed per request from your SandBase balance. Discounts, when available, are shown in the pricing on this page.

Do I need a separate Openrouter account?

No. One SandBase API key and balance gives you access to Openrouter Fusion and the other models in the catalog; you do not need to sign up with Openrouter separately.