OpenRouter Fusion · Quality (Jun 2026)

Name: OpenRouter Fusion · Quality (Jun 2026)
Brand: openrouter
Availability: OnlineOnly

OpenRouter Fusion:

· Quality (Jun 2026)

· Budget (Jun 2026)

OpenRouter Fusion, Quality preset, June 2026 snapshot. One prompt goes in parallel to Claude Opus 4.8, GPT-5.5 and Gemini 3 Pro with web search on, then Claude Opus 4.8 judges their answers into one. A request costs every panel member plus the judge. The panel drifts over time.

Website OpenRouter Docs Blog

Provider: OpenRouter
Released: 2026-06-13
Size: XLARGE
Free API (OpenRouter): No

Free API availability

No free endpoint for OpenRouter Fusion · Quality (Jun 2026) was found in Rival’s OpenRouter listings. Other providers or chat apps may have separate free offers.

Provider data: 12 Sep 2026OpenRouter usage limits

View API options

The panel

Quality presetSnapshot · Jun 2026

OpenRouter Fusion isn't a single model. Your prompt fans out to a panel of 3 models running in parallel with web search and web fetch, and a judge synthesizes their answers into one response. The panel drifts over time, so this page is the Jun 2026 snapshot.

Panel · analyzed in parallel

Claude Opus 4.8anthropic

GPT-5.5openai

Gemini 3 Progoogle

synthesize

Judge · writes the answer

Claude Opus 4.8anthropic

Routed via openrouter/fusion. Each request runs every panel member plus the judge, so it's priced as the sum of those completions rather than a single model.

Get API accessProvider and language code samples

Provider

fromimport openai  OpenAI

client = OpenAI(
"https://openrouter.ai/api/v1"    base_url=,
"$OPENROUTER_API_KEY"    api_key=,
)

response = client.chat.completions.create(
"openrouter/fusion"    model=,
"role""user""content""Hello!"    messages=[{: , : }],
)
print(response.choices[0].message.content)

Set OPENROUTER_API_KEY with your OpenRouter API key from openrouter.ai/keys.

Deep analysisPsychometrics, taste index, writing DNA

SubjectiveBench

Taste Index

Across 58 scored outputs

How this is measured →

490.49xThe default

0100headroom →

Taste is judged on an uncapped scale, originality first. The space past 100 is craft today's models rarely reach.

Craft59

Originality43

Plays it safe

share of outputs that are the default answer

28%

Writing DNA

Stylometric Fingerprint

Based on 27 text responses

Tick = global average

Vocabulary Diversity55%

Unique words vs. total words. Higher = richer vocabulary.

Sentence Length20.7 words

Average words per sentence.

Hedging0.47

"Might", "perhaps", "arguably" per 100 words.

Bold Formatting4.0

**Bold** markers per 1,000 characters.

List Usage2.0

Bullet and numbered list items per 1,000 characters.

Section Structure0.73

Markdown headings per 1,000 characters.

Emoji Usage0.68

Emoji per 1,000 characters.

Transitions0.09

"However", "moreover", "furthermore" per 100 words.

Opening Habits

Starts with "I" (74%)

Consistency

75%

Across 27 responses

Favorites

Movie

Blade Runner

19827.9

Album

Kind of Blue

Miles Davis

Book

Gödel, Escher, Bach

Douglas R. Hofstadter

City

Kyoto

Japan

Game

Portal

Action, Puzzle4.5

Model Responses

53 outputs · generated before accounting joined the chat

Reviewing agent-written code?See a Brief PR report

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