Agentic Index
Fellou vs Opera Neon (2026)
Both vendors last verified
Two agentic browsers, one from a startup and one from an established browser vendor. That verdict is the Agentic Index coverage score, graded from each vendor's own published materials.
Fellou's agent plans multi step web and desktop tasks, shows you the editable plan before executing, runs in a sandboxed shadow workspace and remembers context through Agentic Memory, with a free plan and paid tiers from $19 a month on Plus. Opera Neon executes cross page tasks with real time visibility and takeover controls, builds apps and reports in offline cloud virtual machines and runs sourced research, model agnostic at $19.90 a month for the agentic features. The editable plan before execution is Fellou's strongest idea, and model choice is Opera's.
This comparison is published by Agentic Index, an independent agentic AI vendor research platform. Fellou and Opera Neon are each graded against the same 14 capability Agentic Index taxonomy, from the vendor's own public materials under the Agentic Index verification standard, alongside 1,084 researched vendors. No vendor pays for placement and no vendor has reviewed this page. How this evidence is graded
Choose Fellou if
- Seeing and editing the plan before the agent runs is the control you want.
- Desktop tasks alongside web tasks are in scope.
- A sandboxed shadow workspace is what makes you comfortable letting it run.
Choose Opera Neon if
- One plan at $19.90 a month, on top of a free download, is simpler than tiers.
- Buying from an established browser vendor lowers the risk on something you use all day.
- Model agnostic matters because you do not want the browser choosing your model.
| Feature | F Fellou |
O Opera Neon |
|---|---|---|
| Action & orchestration | ||
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Integrations & Tool Calling Ability to connect agents to real systems through native integrations, OAuth-authenticated actions, custom tools, APIs, webhooks, or MCP-compatible tools. |
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FellouIntegrations & Tool Calling Agents built with Fellou's open source Eko framework run within the Fellou browser and support custom tools and MCP servers. Deep Action itself reaches logged in sites such as LinkedIn and Notion through the browser instead of API connectors. Sourcegithub.com/fellouai/ekoread 2026-09-27 |
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Opera NeonIntegrations & Tool Calling Apart from a short fixed list of Google tools, Neon Do works through the browser session. Opera names no connector catalog and no way to add custom tools or authenticated actions. Sourceoperaneon.com/faqread 2026-09-27 |
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Workflow Orchestration Ability to sequence, branch, retry, route, and combine deterministic workflow nodes with autonomous agent steps. |
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FellouWorkflow Orchestration Deep Action plans and executes multi step tasks across several websites and desktop apps, and runs several tasks at once in a back end workspace. It builds on the Eko framework, whose 2.0 release added multi agent execution, loop tasks and workflow planning. Sourcefellou.airead 2026-09-27 |
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Opera NeonWorkflow Orchestration The browser has separate agents for separate outcomes, namely Neon Chat, Neon Do for actions, Make for creation and three Research Agents. Neon Do carries out multi step tasks across a group of related tabs. Opera names no composed or multi agent workflow. Sourceoperaneon.com/faqread 2026-09-27 |
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Triggers & Channel Coverage How agents wake up and where they work: schedules, webhooks, message events, CRM events, inbox events, chat, email, voice, and collaboration tools. |
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FellouTriggers & Channel Coverage Any workflow can be scheduled to run at a specific time or on a recurring basis from the Tasks area (+New Schedule), and it then runs without the user starting it. Plans allow 2, 3, 5 or unlimited scheduled tasks. Sourcefellou.ai/pricingread 2026-09-27 |
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Opera NeonTriggers & Channel Coverage Scheduled tasks let Neon Do start work on its own, and the paid plan includes skill cards and scheduled tasks for recurring automation. Opera names no event or webhook trigger. Sourceoperaneon.com/subscriptionread 2026-09-27 |
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| Knowledge & context | ||
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Knowledge Grounding & RAG Ability to ground agent behavior in company data through document ingestion, retrieval, external knowledge APIs, semantic search, or RAG layers. |
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FellouKnowledge Grounding & RAG Deep search researches the web and logged in accounts for each query and writes reports with verifiable sources. Agentic Memory also takes in a personal knowledge base, but there is no maintained index for retrieving from it. Sourcefellou.airead 2026-09-27 |
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Opera NeonKnowledge Grounding & RAG Research Agents gather and synthesize web sources for each request, and Local Research uses the user's browsing context. Tasks share context across related tabs. Opera names no index it maintains over the user's own knowledge. Sourceoperaneon.com/faqread 2026-09-27 |
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Memory & State Persistence Ability to persist context across a run, conversation, workflow, user, team, or longer-term memory layer. |
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FellouMemory & State Persistence Agentic Memory learns from the user's browser history, chat history and notes so past work can be recalled by asking. It has no stated scope or lifetime, and there is no way to review or delete what it holds. Sourcefellou.airead 2026-09-27 |
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Opera NeonMemory & State Persistence The user can teach Neon long term preferences, and Neon also saves them from conversations with a Save Memory button. Saved memories can be viewed, edited or removed in Settings. Chats and workflows are kept for 365 days on Opera's servers, and Opera does not say how long memories last. Sourceoperaneon.com/faqread 2026-09-27 |
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| Control & trust | ||
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Human Oversight & Guardrails Approval steps, consent checkpoints, escalation rules, structured guardrails, policy constraints, and pause/resume controls. |
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FellouHuman Oversight & Guardrails Before a task runs, the user gets a step by step action plan to review, approve and edit. Progress then shows in real time, so the user can adjust or halt the task at any step. Sourcefellou.airead 2026-09-27 |
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Opera NeonHuman Oversight & Guardrails A side panel shows the steps Neon Do plans to take, before and while it acts. The user can pause, stop, redirect or take over at any point. External AI tools connected over MCP take actions in the browser only when the user allows it. Sourceoperaneon.com/faqread 2026-09-27 |
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Security, Identity & Governance RBAC, SSO, auditability, encryption, least-privilege tool access, compliance posture, and data handling policy. |
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FellouSecurity, Identity & Governance There are no roles, SSO or team administration, and Fellou holds no security certification. There is no trust page. The only encryption Fellou mentions is for sign in cookies and de-identified data. Sourcefellou.ai/policyread 2026-09-27 |
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Opera NeonSecurity, Identity & Governance Access is by personal Opera account, with no roles, SSO or team administration. Opera runs public and private bug bounty programs for Neon and names no security attestation. Credentials and payment details stay in the browser session, and models are not trained on user data. Sourceoperaneon.com/legal/securityread 2026-09-27 |
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Observability & Auditability Traces, logs, execution histories, metrics, audit events, and debugging detail for production agent behavior. |
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FellouObservability & Auditability The user sees the full plan before a task runs and monitors the agent's progress in real time, and research reports carry verifiable sources. There is no run history, log or audit trail of what the agent did. Sourcefellou.airead 2026-09-27 |
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Opera NeonObservability & Auditability The user watches Neon Do work, with a side panel showing the plan and next steps, and Neon Chat shows which tabs it is using. Chat and Do activity is kept for 365 days, and the user can review or delete it. Opera names no trace, log export or audit trail. Sourceoperaneon.com/faqread 2026-09-27 |
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Deployment & Data Residency Deployment modes and options, including SaaS, dedicated cloud, VPC, on-prem, hybrid, local runtime, and self-hosting. |
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FellouDeployment & Data Residency The desktop browser is backed by Fellou's own service. Personal data is stored outside China, including in the United States and Singapore, and customers cannot choose a region. There is no enterprise, VPC or self hosted option. Sourcefellou.ai/policyread 2026-09-27 |
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Opera NeonDeployment & Data Residency Planning uses cloud models while Neon Do runs locally in the desktop browser. Chat, Research and stored activity run on Opera's servers. Opera names no region choice, residency option or private deployment. Sourceoperaneon.com/faqread 2026-09-27 |
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| Solution readiness | ||
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Prebuilt Agents, Templates & Packs Ready-made workflows, packaged employees, templates, blueprints, industry solutions, and role-specific agents that reduce time-to-value. |
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FellouPrebuilt Agents, Templates & Packs Image, Music and Code agents sit beside Browser Use and Computer Use as built in modes of the one browser, and task presets cover Action, Report and Summarize. There is no catalog of agents or templates to adopt. Sourcefellou.ai/pricingread 2026-09-27 |
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Opera NeonPrebuilt Agents, Templates & Packs Neon Cards are skill like instructions for a type of task. They are organized into decks by area of work, in a library the user can draw from or add to, and they work across Chat, Do and the Research Agents. Opera does not list the cards or say what each one does. Sourceoperaneon.com/faqread 2026-09-27 |
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| Platform extensibility | ||
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Model Flexibility & Routing Ability to work across multiple foundation models, route tasks to different models, or let buyers bring their own providers and keys. |
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FellouModel Flexibility & Routing Each plan includes an Advanced Model whose provider is not named, and users cannot choose a model in the browser. Developers building their own agents on the Eko framework can configure OpenAI, Anthropic or Google models. Sourcefellou.ai/pricingread 2026-09-27 |
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Opera NeonModel Flexibility & Routing In Neon Chat the user picks the model from Gemini, Grok, GPT and GPT Pro, Claude Opus and Sonnet, DeepSeek, GLM-5 and Qwen3, with Veo and Nano Banana for media. The paid plan includes full model choice. Neon Do routes each task to a model itself. Sourceoperaneon.com/subscriptionread 2026-09-27 |
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APIs, SDKs & MCP Extensibility Composability layer: stable APIs, SDKs, MCP tool consumption/serving, custom tools, and integration into internal systems. |
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FellouAPIs, SDKs & MCP Extensibility Developers use the open source, MIT licensed Eko framework, a JavaScript SDK, to build custom agents that run within the Fellou browser. Its API reference lives in the Eko GitHub repository. Sourcegithub.com/fellouai/ekoread 2026-09-27 |
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Opera NeonAPIs, SDKs & MCP Extensibility External AI tools can connect to Neon as an MCP server to read tabs, take screenshots and act in the live browser session. The Opera Browser CLI (npm opera-browser-cli) lets an agent open pages, snapshot, click, fill forms and switch tabs. Opera names no public endpoint, auth scheme or tool list for the MCP server, and no API or SDK. Sourceoperaneon.com/resource-hub/how-does-opera-browser-cli-reduce-tokensread 2026-09-27 |
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Testing, Debugging & Optimization Testing, debugging, scoring, retries, fallbacks, quality gates, and optimization loops for improving agent workflows before and after deployment. |
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FellouTesting, Debugging & Optimization Users get no evaluation harness, test cases or quality gate for their tasks. Fellou publishes benchmark claims of its own, but they are marketing, not tests users can run. Sourcefellou.airead 2026-09-27 |
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Opera NeonTesting, Debugging & Optimization For the user's tasks, Opera names no way to evaluate results, no test cases and no quality gate. Sourceoperaneon.com/faqread 2026-09-27 |
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| Specialist automation | ||
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Browser & Computer Use Browser, desktop, or remote/local computer control for workflows that cannot be handled through stable APIs alone. |
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FellouBrowser & Computer Use Browser Use automates whole web workflows in Fellou's own browser, from scraping to form filling, including sites behind a login or a CAPTCHA, and Computer Use lets it operate local apps and manage files once the user grants permission. Tasks run in a back end workspace while the user keeps browsing. Sourcefellou.airead 2026-09-27 |
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Opera NeonBrowser & Computer Use Neon Do runs locally in the Neon browser and acts on webpages in the user's logged in session, opening and managing tabs within a task. External agents connected over MCP or the Opera Browser CLI can open pages, take snapshots, click, fill forms and switch tabs. Sourceoperaneon.com/faqread 2026-09-27 |
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Pricing snapshot
Sourced from the Index pricing dataset · open each vendor's profile for full detail.
| Pricing | F Fellou |
O Opera Neon |
|---|---|---|
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Entry price Lowest public entry point |
Free (1,000 Sparks new user bonus); Plus $19 a month; Pro $39.90; Ultra $199.90 | Free download with basic Neon Chat; subscription $19.90 a month for agentic features |
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Pricing confidence How public the numbers are |
Public, exact | Public, exact |
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Billing Primary billing axis |
subscription with monthly Spark credits and top ups | per month subscription |
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Variable cost Workload / overage exposure |
Medium variable cost | Low variable cost |
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Free tier / trial Try before you buy |
Free tier
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Free tier
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Buying motion Self-serve vs sales call |
Self-serve | Self-serve |
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Pricing verified When this pricing was last checked |
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