Agentic Index
depthfirst vs Pi (2026)
Both vendors last verified
depthfirst and Pi both use AI agents to find and fix software vulnerabilities. depthfirst covers more kinds of risk, and Pi grounds its fixes in a model of the company's own code, cloud and history. depthfirst, an applied AI lab founded in 2024 by alumni of Databricks and Google DeepMind, runs custom agents that detect, triage and remediate vulnerabilities across code, dependencies, secrets, infrastructure and runtime. That verdict is the Agentic Index coverage score, graded from each vendor's own published materials.
Pi builds a security brain of a company's code, cloud and history, then finds and ships fixes across the development lifecycle. Neither has a public price. depthfirst replays each attack after a fix merges and counts a vulnerability as resolved only when the exploit fails, logs every human and agent action immutably, and lets customers hold their own encryption keys. Both leave the final merge to the customer. Choose depthfirst for the broader remediation platform. Choose Pi for fixes grounded in your company's own history.
On the Agentic Index AI SOC ranking, neither depthfirst nor Pi clears the bar, which asks for all five investigation loop capabilities documented in full. depthfirst does not document human oversight and guardrails in full; Pi documents two of the five in full. 25 of the 86 vendors in the lane clear it. See the AI SOC ranking
This comparison is published by Agentic Index, an independent agentic AI vendor research platform. depthfirst and Pi 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 depthfirst if
- Vulnerabilities across code, dependencies, secrets and runtime are in scope.
- A fix should count only once the same attack fails against it.
- Named agents for detection, triage and remediation matter.
Choose Pi if
- Fixes should draw on a model of your own code, cloud and history.
- You want the agent to ship fixes across the development lifecycle.
- A narrower product is enough for your first step.
| Feature | d depthfirst |
P Pi |
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| 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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depthfirstIntegrations & Tool Calling depthfirst connects to GitHub, GitLab, Jira, Linear, Docker, AWS, Google Cloud, Azure, Terraform and JFrog, and its remediation agent opens a pull request against the customer's repository for every confirmed vulnerability. Sourcedepthfirst.com/platformread 2026-09-28 |
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PiIntegrations & Tool Calling Pi works inside developer workflows, in the IDE and on pull requests, and it acts there. It opens and manages tickets and pull requests with contextual fixes and posts to Slack. The fixes are built for the customer's codebase, its languages, architecture and conventions. SourcePi Security, pi.securityread 2026-10-06 |
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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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depthfirstWorkflow Orchestration Several agents hand work to each other across one loop. The code scanner and supply chain agent find issues, the agentic pentester validates exploitability, the remediation agent opens the fix, and the pentester replays the attack after merge, with a finding closed only when exploitation fails. There is no stated workflow builder the customer configures. Sourcedepthfirst.com/platformread 2026-09-28 |
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PiWorkflow Orchestration Triage, root cause analysis back to the architectural source, variant hunting and the fix run as the product's own multi step sequence, with known insecure patterns blocked before they are introduced. Pi describes no branching the customer designs, multi agent handoff or workflow surface. SourcePi Security, pi.securityread 2026-10-06 |
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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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depthfirstTriggers & Channel Coverage Work starts on events with no one asking. Every pull request is reviewed before merge, the pentester replays attacks after every merge, reachability runs in every SCA scan, and the dependency firewall watches packages in real time. Sourcedepthfirst.comread 2026-09-28 |
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PiTriggers & Channel Coverage Pi runs on development events, in the IDE and on pull requests during design and coding, and blocks insecure patterns before code is introduced, so a change starts the work without anyone asking. SourcePi Security, pi.securityread 2026-10-06 |
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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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depthfirstKnowledge Grounding & RAG The platform maps the customer's repositories into a Component Graph of data flows, cross service relationships and every dependency. Supply chain scanning runs on that same graph, a shared layer beyond the context of a single run, though how long it persists between scans is not stated. Agents show the call chain behind each finding, and product docs sit behind the app login. Sourcedepthfirst.com/platform and depthfirst.com/supply-chainread 2026-10-25 |
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PiKnowledge Grounding & RAG The security brain is a living inventory of the customer's security history built from its codebase, past incidents, pentest reports and security tickets. The Sloane agent draws on it to trace each vulnerability to its source and to hunt every variant across the organization, and Pi says this institutional security memory drives continuous posture improvement. SourcePi Security, pi.securityread 2026-10-06 |
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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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depthfirstMemory & State Persistence The platform improves over time by learning from developer feedback on its recommendations, which carries state across scans. There is no stated memory store, scope or lifetime. Sourcedepthfirst.com/platformread 2026-09-28 |
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PiMemory & State Persistence Pi calls the security brain its institutional security memory. It holds the customer's security history and grounds the agent's work. Beyond it, the Sloane assistant holds conversation state, and Pi gives no scope or lifetime for any other agent memory. SourcePi Security, pi.securityread 2026-10-06 |
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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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depthfirstHuman Oversight & Guardrails Policy set once applies to every scan, fix and agent action, a customer controlled constraint. Fixes arrive as pull requests an engineer reviews and merges, but that review gate belongs to the customer's code host, and there is no stated depthfirst approval step before an agent action commits. Sourcedepthfirst.comread 2026-09-28 |
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PiHuman Oversight & Guardrails Fixes arrive as pull requests and tickets that engineers act on, and insecure patterns are blocked before code lands. Engineers decide what merges through the customer's own code host. Pi describes no approval step of its own before an action commits. SourcePi Security, pi.securityread 2026-10-06 |
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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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depthfirstSecurity, Identity & Governance Role based access is scoped by repository, environment or organization, and customers hold their own encryption keys. The SOC 2 attestation is independently audited and has a trust center at trust.depthfirst.com, but its type is not given. Sourcedepthfirst.comread 2026-09-28 |
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PiSecurity, Identity & Governance A SOC 2 badge appears as an image on Pi's site, but Pi does not state the attestation in text or publish a SOC 2 report. Pi names no SSO, SCIM or role model, and it has no trust subdomain. SourcePi Security, pi.securityread 2026-10-06 |
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Observability & Auditability Traces, logs, execution histories, metrics, audit events, and debugging detail for production agent behavior. |
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depthfirstObservability & Auditability Every human and agent action is logged, immutable and traceable, showing who did what, when and why, and each finding carries the full call chain from application code to the vulnerable function. Sourcedepthfirst.comread 2026-09-28 |
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PiObservability & Auditability Each finding carries automated triage and root cause analysis explaining why it is real, traced to its architectural source. Pi describes no trace or audit log of the agent's own steps. SourcePi Security, pi.securityread 2026-10-06 |
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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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depthfirstDeployment & Data Residency depthfirst publishes no hosting model, region or self hosted option, and customer held keys are an encryption control, not a deployment option. The product docs at docs.depthfirst.com sit behind the app login. Sourcetrust.depthfirst.comread 2026-09-28 |
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PiDeployment & Data Residency No hosting region is published, and Pi names no self hosted option or customer environment. It has no trust subdomain. SourcePi Security, pi.securityread 2026-10-06 |
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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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depthfirstPrebuilt Agents, Templates & Packs There are six named products, Code Scanner, Dependency Firewall, Agentic Pentester, Security Reviewer for pull requests, Secrets and Sensitive Data, and Supply Chain, each doing its own job. depthfirst presents them together as one platform that covers the full cycle and does not say whether each can be adopted on its own. Sourcedepthfirst.comread 2026-10-06 |
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PiPrebuilt Agents, Templates & Packs One named agent, Sloane, ships ready to use. Pi describes no other agents or templates to adopt separately. Customers it names include Lemonade, Teramind and Navan. SourcePi Security, pi.securityread 2026-10-06 |
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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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depthfirstModel Flexibility & Routing The agents run depthfirst's own security models (dfs-mini1, and dfs-large1 in preview, post trained on GLM 5.2), and the company writes that its harness routes each task to the best models across providers. That routing stays with depthfirst, with no provider list the customer selects from and no bring your own model path. Sourcedepthfirst.com/post/why-defenders-cant-bet-on-one-modelread 2026-10-25 |
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PiModel Flexibility & Routing The models behind Sloane are not named, and no model choice is offered. SourcePi Security, pi.securityread 2026-10-06 |
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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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depthfirstAPIs, SDKs & MCP Extensibility An API queries findings, triggers scans and integrates depthfirst into the customer's own tooling, and its reference sits behind the customer login at docs.depthfirst.com. Sourcedepthfirst.com/platformread 2026-09-28 |
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PiAPIs, SDKs & MCP Extensibility No API, SDK, MCP server or developer documentation for Pi is published. SourcePi Security, pi.securityread 2026-10-06 |
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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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depthfirstTesting, Debugging & Optimization The pentester replays the same attack after every fix is merged, and a vulnerability counts as resolved only when exploitation fails in the running application, a quality gate on the agent's own output. Recommendations also improve on developer feedback, an optimization loop after deployment. The dfbench model benchmark is depthfirst's own publication, not a customer surface. Sourcedepthfirst.com/platformread 2026-09-28 |
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PiTesting, Debugging & Optimization Reported outcomes are 70% less manual triage, 85% fewer repeat bounty payouts and 95% of vulnerabilities blocked before production, all figures Pi gives for itself. Pi does not say how its fixes or agent behavior are tested, scored or gated. SourcePi Security, pi.securityread 2026-10-06 |
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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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depthfirstBrowser & Computer Use Agentic Pentesting, launched 30 September 2026 through demo request, has agents authenticate and navigate the application's UI and APIs. The pages name no browser, and no clicking or form filling. Sourcedepthfirst.com/agentic-pentestingread 2026-10-25 |
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PiBrowser & Computer Use Work runs through the IDE, pull requests and tickets. Pi describes no agent driving a browser, desktop or remote computer. SourcePi Security, pi.securityread 2026-10-06 |
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Pricing snapshot
Sourced from the Index pricing dataset · open each vendor's profile for full detail.
| Pricing | d depthfirst |
P Pi |
|---|---|---|
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Entry price Lowest public entry point |
Not published. Sold through sales after a demo. | Not public; quoted through sales after a demo |
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Pricing confidence How public the numbers are |
Contact only | Contact only |
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Billing Primary billing axis |
No billing unit is published. | not published |
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Variable cost Workload / overage exposure |
Medium variable cost | Medium variable cost |
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Free tier / trial Try before you buy |
No free tier
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No free tier
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Buying motion Self-serve vs sales call |
Sales call | Sales call |
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Pricing verified When this pricing was last checked |
Product updates
Newest first, each linked to its source.
depthfirst
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· Agent capability
depthfirst launched Agentic Pentesting, autonomous agents that log in to a running application and attack it through its interfaces and APIs, on demand or from a CI pipeline.
Source -
· Agent capability
depthfirst makes transitive dependency reachability available to customers as part of every software composition analysis scan.
Source -
· Agent capability
DepthFirst introduced dfs-large1, a proprietary security model built on GLM 5.2 and post-trained using reinforcement learning within its security agent harness.
Source
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