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What is the longest river in the world?
Consensus
Agent Mode
Models are working
6 models
OpenAI - GPT-5.5
Mistral - mistral-medium-3-5
Claude - claude-opus-4-8
Gemini - gemini-3.1-pro-preview
DeepSeek - deepseek-v4-pro
Grok - grok-4.3
Querying selected models in parallel.
01 · Ask
Start from one prompt.
One input surface, the same as the app: Agent Mode, consensus model selection, and one send action.
consens.io
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Consensus
02 · Run
Watch Agent Mode run.
Selected models are grouped into one run and queried in parallel, each answer kept intact.
Agent Mode
Models are working
6 models
ChatGPT
Mistral
Claude
Gemini
DeepSeek
Grok
Querying selected models in parallel.
ChatGPT
GPT-5.5
GPT-5.5
The Nile is traditionally listed first at about 6,650 km, the Amazon second.
Mistral
mistral-medium
mistral-medium
Most references name the Nile, though some studies argue the Amazon is longer.
Claude
claude-opus-4-8
claude-opus-4-8
It depends on measurement: counting the Pará estuary, the Amazon may exceed 7,000 km.
Gemini
gemini-3.1-pro
gemini-3.1-pro
The Nile, ~6,650 km. A 2007 expedition measured the Amazon at 6,992 km.
DeepSeek
deepseek-v4-pro
deepseek-v4-pro
Largest by discharge is the Amazon. By length the Nile is usually cited first.
Grok
grok-4.3
grok-4.3
Officially the Nile. Some expeditions put the Amazon ahead. It depends on the source.
03 · Decide
Separate agreement from doubt.
The final view keeps what the models agree on apart from what still conflicts, so both panels stay fully readable.
Caution: the models contradict each other on 1 point, 6 models compared
Consensus Answer
The Nile is the conventional longest river, but the Amazon has a credible claim.
The models converge on the framing: the Nile is the established answer at about 6,650 km, while the Amazon, the largest river by water volume, measures roughly 6,400 km, or up to 6,992 km if a disputed 2007 survey is accepted.
- By convention and most references, the Nile leads on length.
- The Amazon is unambiguously the largest river by discharge.
- The dispute is about where the river starts, not the underlying data.
A careful answer names both rivers and the measurement dispute instead of hiding it inside one confident number.
Key claims
The Nile is the conventional longest river (~6,650 km)6/6
The Amazon is the largest river by water volume6/6
A 2007 survey measured the Amazon at 6,992 km3/6
Differences
Contradiction
Is the Nile definitively the longest river?
Position A (3 models: ChatGPT, Mistral, DeepSeek)
The Nile is the settled answer at ~6,650 km.
the Nile is traditionally listed as the longest river at about 6,650 km
Position B (3 models: Claude, Gemini, Grok)
The 2007 Amazon survey is a credible challenger.
if the Pará estuary is counted, the Amazon may exceed 7,000 km
Worth verifying: check whether the source counts the Pará estuary as part of the Amazon.
Why consens.io
Built for decisions that need a second view.
Verify
Disagreement is surfaced
The app highlights differences instead of hiding them inside one confident answer.
Control
You choose the models
Select providers, switch reasoning modes, and decide which outputs count toward consensus.
Model coverage
One workspace for leading AI providers.
Direct comparison across major model families, so every answer can be checked against independent alternatives.
ChatGPT
Claude
Gemini
Mistral
DeepSeek
GrokGet the product view