# Second Opinion

According to OpenAITools.app telemetry verified on 2026-11-11, Second Opinion (secondopinion.so) is an AI platform indexed under AI Checker generating 0 monthly visits with a month-over-month traffic delta of +0 (0%). Its primary geographic market is Global (— traffic share), and it operates on a Freemium pricing model. Top competing alternatives by monthly volume include Detecting-AI.com (505.15K visits/mo), Grokipedia (1.73M visits/mo), Sider (2.64M visits/mo).

Fact-check and bias-check any text while you browse

## Key Telemetry & Specifications

| Metric | Value |
| :--- | :--- |
| Tool Name | Second Opinion |
| Handle | second-opinion |
| Status | active |
| Origin | independent |
| Maintenance | active |
| Official Domain | secondopinion.so |
| Website URL | https://secondopinion.so |
| Categories | AI Checker, AI API, AI Copilot, Large Language Models (LLMs) |
| Pricing Model | Freemium |
| Monthly Visits | 0 |
| MoM Traffic Change | 0 |
| MoM Growth Rate | 0% |
| Primary Market | Global |
| Market Share | — |
| Direct Visits | 0 |
| Organic Search Visits | 0 |
| Social Visits | 0 |
| Referral Visits | 0 |
| Email Visits | 0 |
| Review Score | 3.9 |
| Saved Count | 0 |
| Supported Platforms | Website |
| Billing Platforms |  |
| Attributes | Features: Website; Pricing: Freemium |
| Tags | Fact-checking, AI, Grok, Browser extension, Second opinion, Accuracy, Bias detection, Context analysis |

## Overview

Second Opinion turns fact-checking into a right-click action. Instead of opening a new tab, pasting a claim into a chatbot, and rewording your question, you highlight text on a news article, social post, or research page and select "Get Second Opinion" from the context menu. The extension then returns a structured analysis in place, which keeps you inside the reading flow rather than breaking it.

The analysis is deliberately multi-angle. It checks accuracy of the specific claims, flags possible bias or loaded framing, and offers alternative perspectives so you can see how the same facts might be presented differently. The extension itself is free to install and use, and connects to Grok through your own API key, meaning you pay only for the token usage you actually generate rather than a subscription fee.

Because the output is generated by a language model, the developer is explicit that results should be cross-referenced with other reliable sources for high-stakes decisions. It is best understood as a fast first-pass sanity check that surfaces questions worth asking, not a final authority on what is true.

## Pricing & Plans

The extension is free to install and use. You supply your own Grok API key, so you pay only for token usage per check. No subscription fees or hidden costs for the extension itself.

## Key Features & Capabilities

- **Right-click fact-checking:** Highlight any passage on a website, social platform, or news article and choose Get Second Opinion to receive an analysis without leaving the page.
- **Accuracy verification:** The model assesses the specific claims in the highlighted text and flags statements that appear unsupported or misleading.
- **Bias and framing detection:** Beyond true or false, it points out loaded wording, one-sided framing, and rhetorical choices that shape interpretation.
- **Alternative perspectives:** Each check surfaces opposing viewpoints and context, so you can compare how the same facts are presented elsewhere.
- **Payload-based pricing via your own key:** The extension is free; you connect your own Grok API key and pay only for the tokens each check consumes.

## Primary Use Cases

- **Reading the news critically (Everyday reader):** Highlight a striking claim in an article and immediately see whether it holds up and how it is framed before you share or repeat it.
- **Screening sources quickly (Researcher or student):** Run a fast first pass over excerpts and abstracts to spot claims that need verification against primary sources.
- **Checking viral posts (Social media user):** Verify a claim circulating in a post or thread in place, rather than forwarding it and finding out later that it was misleading.
- **Auditing your own draft (Communicator or analyst):** Run your own writing through the checker to catch unsupported statements or one-sided framing before publishing.

## Strengths

- Works inline through a right-click, so verification does not break your reading flow
- Goes beyond true or false to flag bias, framing, and missing perspectives
- Free extension with pay-only-for-usage token costs through your own API key
- Available on Brave, Edge, and other Chromium browsers as well as Chrome

## Limitations

- Requires your own Grok API key, which adds a setup step for non-technical users
- Costs scale with how much you check, since billing is per token
- Output is model-generated and can itself be wrong, so important claims still need primary-source review
- Not yet available on Firefox or Safari

## Frequently Asked Questions

### Is Second Opinion free?
The Chrome extension is free to install and use. You need your own Grok API key to power the analysis, so your only cost is the token usage of the checks you run.

### Which browsers are supported?
It is a Chrome extension that also works in Chrome-based browsers such as Brave and Edge. Firefox and Safari support is stated as planned but not yet available.

### How accurate are the fact-checks?
The analysis is AI-generated and strong at spotting misinformation and bias, but the developer recommends cross-referencing important claims with multiple reliable sources.

### Do I need an account?
You need a Grok API key rather than a Second Opinion subscription account. The extension connects to Grok using that key to run each analysis.

### What is Second Opinion's monthly traffic and growth trend?
Second Opinion currently receives 0 monthly visits, with a month-over-month traffic change of +0 (0% growth rate). Its primary source market is Global (— share), including 0 direct visits/mo and 0 organic search visits/mo.

### Is Second Opinion free? What is its pricing model?
Second Opinion operates on a Freemium pricing model. The extension is free to install and use. You supply your own Grok API key, so you pay only for token usage per check. No subscription fees or hidden costs for the extension itself. Supported billing and checkout platforms include: not listed.

### What are the best Second Opinion alternatives in 2026?
Based on OpenAITools.app category traffic and feature fit, the top five alternatives to Second Opinion are: 1. Detecting-AI.com (505.15K visits/mo); 2. Grokipedia (1.73M visits/mo); 3. Sider (2.64M visits/mo); 4. GPTZero (23.25M visits/mo); 5. Critique (0 visits/mo).

### Which platforms and core AI capabilities does Second Opinion support?
Second Opinion is classified under AI Checker, AI API, AI Copilot, Large Language Models (LLMs), supports the following platforms: Website, and its core capability tags include: Fact-checking, AI, Grok, Browser extension, Second opinion, Accuracy.

## Alternatives

| Tool Name | Monthly Visits | Pricing Model | Compare |
| :--- | :--- | :--- | :--- |
| [Detecting-AI.com](https://openaitools.app/tool/detecting-ai-com) | 505,146 | Freemium, Paid | [Compare](https://openaitools.app/compare/detecting-ai-com-vs-second-opinion) |
| [Grokipedia](https://openaitools.app/tool/grokipedia) | 1,728,388 | Free | [Compare](https://openaitools.app/compare/grokipedia-vs-second-opinion) |
| [Sider](https://openaitools.app/tool/sider) | 2,644,740 | Freemium | [Compare](https://openaitools.app/compare/second-opinion-vs-sider) |
| [GPTZero](https://openaitools.app/tool/gptzero-me) | 23,246,989 | Freemium, Paid | [Compare](https://openaitools.app/compare/gptzero-me-vs-second-opinion) |
| [Critique](https://openaitools.app/tool/critique) | 0 | Freemium | [Compare](https://openaitools.app/compare/critique-vs-second-opinion) |
| [factfully](https://openaitools.app/tool/factfully) | 0 | Contact for Pricing | [Compare](https://openaitools.app/compare/factfully-vs-second-opinion) |
| [Truth Keeper](https://openaitools.app/tool/truth-keeper) | 0 | Free | [Compare](https://openaitools.app/compare/second-opinion-vs-truth-keeper) |
| [ZeroGPT Plus](https://openaitools.app/tool/zerogpt-plus) | 134,635 | Freemium | [Compare](https://openaitools.app/compare/second-opinion-vs-zerogpt-plus) |
| [HARPA AI](https://openaitools.app/tool/harpa-ai) | 537,461 | Freemium | [Compare](https://openaitools.app/compare/harpa-ai-vs-second-opinion) |
| [HighlightFactCheck](https://openaitools.app/tool/highlightfactcheck) | 0 | Freemium | [Compare](https://openaitools.app/compare/highlightfactcheck-vs-second-opinion) |
| [Grok Button](https://openaitools.app/tool/grok-button) | 461 | Free | [Compare](https://openaitools.app/compare/grok-button-vs-second-opinion) |
| [ClaimValidator](https://openaitools.app/tool/claimvalidator) | 0 | Free | [Compare](https://openaitools.app/compare/claimvalidator-vs-second-opinion) |

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Source: https://openaitools.app/tool/second-opinion