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Retell AI alternatives

The best Retell AI alternatives in AI assistants, ranked by Sparkpulse's velocity_score.

Updated Nov 10, 2026

Looking for the best alternatives to Retell AI? Sparkpulse tracks and ranks 12 alternatives in AI assistants by shipping velocity — how frequently each ships meaningful updates, verified from official changelogs. For reference, Retell AI shipped 0 meaningful updates in the last 30 days and carries a velocity score of 0.0 out of 10 in 2026. The alternatives below are ranked the same way, so you're comparing real release momentum, not marketing claims.

About Retell AI

Voice-AI platform building toward composable, flexibly-routed agents

Retell builds voice AI agents, and the captured releases (through early 2026) center on making complex agents maintainable and adaptive: Agent Transfer for handing context between modular agents, Flex Mode for non-linear flow navigation, reusable Flow Components, and node-level knowledge bases. Add to that a chat widget, an AI QA Analyst, and periodic pricing adjustments.

Velocity 0.0 · Last update 4mo ago

Read the full Retell AI trajectory →

Top 12 alternatives to Retell AI

Ranked by recent ship velocity. Tap any card for the full editorial breakdown, or pivot to a head-to-head.

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Retell AI vs alternatives — shipping velocity at a glance

Velocity score (0–10) and meaningful releases shipped in the last 30 days, from official changelogs. Higher = shipping faster.

ProductVelocitySparks · 30dFocus areasLatest release
Retell AI (baseline)0.00voice-aiconversation-flowsagent-compositionFlex Mode for Conversation Flows
GitHub Copilot10.00agentic-codingchat-integrationscode-review—
LobeChat8.80ai-agentsteam-workspacetask-management—
DocsBot AI7.52ai-supportvoice-agentsevalsDocsBot Voice: Your Knowledge, Ready to Answer the Phone
InvokeAI6.31image generationopen sourcev7 rewriteInvokeAI 7 beta makes projects and the new workbench default
Claude6.31agentsenterprise-admincost-allocationClaude Duet research preview: a proactive agent app for Pro and Max
Ollama6.30local-llmcoding-agentsagent-hosts—
Dify6.31llm-appsai-agentsobservabilityv1.18.0 — Smarter Agent Routing, Portable Apps, Deeper Workflow Visibility
Cherry Studio5.00desktop-ai-clientrelease-processbackports—
Docling5.00document-parsingocrmodel-presets—
opencode5.00ai-coding-agentcliopen-source—
OpenHands5.00coding-agentssaasenterprise—
AutoGPT5.00agentic-platformhuman-in-the-loopself-hosting—

The 12 best Retell AI alternatives, in depth

1. GitHub Copilot · velocity 10.0

Copilot's week after Xcode: @GitHub goes GA in Slack and Teams, and admins get review APIs.

Its velocity score of 10.0/10 reflects longer-term release cadence.

Where Retell AI leans on voice ai, conversation flows and agent composition, GitHub Copilot focuses on agentic coding, chat integrations and code review.

GitHub Copilot and Retell AI have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

2. LobeChat · velocity 8.8

LobeHub v2.3.2 adds task labels, MCP Apps in chat and Copilot CLI as an agent.

Its velocity score of 8.8/10 reflects longer-term release cadence.

Where Retell AI leans on voice ai, conversation flows and agent composition, LobeChat focuses on ai agents, team workspace and task management.

LobeChat and Retell AI have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

3. DocsBot AI · velocity 7.5

DocsBot closes its launch week with Evals, a way to test bot changes before customers see them.

Over the last 30 days DocsBot AI shipped 2 meaningful updates vs Retell AI's 0, most recently “DocsBot Voice: Your Knowledge, Ready to Answer the Phone”. Its velocity score of 7.5/10 blends that with longer-term release cadence.

Where Retell AI leans on voice ai, conversation flows and agent composition, DocsBot AI focuses on ai support, voice agents and evals.

Over the last 30 days DocsBot AI has been shipping faster than Retell AI — a point in its favour if release momentum matters to you.

4. InvokeAI · velocity 6.3

InvokeAI 7 reaches beta with projects and a single widget workbench as the new default.

Over the last 30 days InvokeAI shipped 1 meaningful update vs Retell AI's 0, most recently “InvokeAI 7 beta makes projects and the new workbench default”. Its velocity score of 6.3/10 blends that with longer-term release cadence.

Where Retell AI leans on voice ai, conversation flows and agent composition, InvokeAI focuses on image generation, open source and v7 rewrite.

Over the last 30 days InvokeAI has been shipping faster than Retell AI — a point in its favour if release momentum matters to you.

5. Claude · velocity 6.3

Claude Enterprise lets finance teams tag project spend by cost code.

Over the last 30 days Claude shipped 1 meaningful update vs Retell AI's 0, most recently “Claude Duet research preview: a proactive agent app for Pro and Max”. Its velocity score of 6.3/10 blends that with longer-term release cadence.

Where Retell AI leans on voice ai, conversation flows and agent composition, Claude focuses on agents, enterprise admin and cost allocation.

Over the last 30 days Claude has been shipping faster than Retell AI — a point in its favour if release momentum matters to you.

6. Ollama · velocity 6.3

Ollama v0.40.15 ships MiMo V2.6, AutoTrust decision models and Kimi Code CLI in launch.

Its velocity score of 6.3/10 reflects longer-term release cadence.

Where Retell AI leans on voice ai, conversation flows and agent composition, Ollama focuses on local llm, coding agents and agent hosts.

Ollama and Retell AI have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

7. Dify · velocity 6.3

Dify 1.19 traces workflows layer by layer, down to the LLM calls inside nested tools.

Over the last 30 days Dify shipped 1 meaningful update vs Retell AI's 0, most recently “v1.18.0 — Smarter Agent Routing, Portable Apps, Deeper Workflow Visibility”. Its velocity score of 6.3/10 blends that with longer-term release cadence.

Where Retell AI leans on voice ai, conversation flows and agent composition, Dify focuses on llm apps, ai agents and observability.

Over the last 30 days Dify has been shipping faster than Retell AI — a point in its favour if release momentum matters to you.

8. Cherry Studio · velocity 5.0

Cherry Studio is on a v2.2.0 release branch, fed by automated backports.

Its velocity score of 5.0/10 reflects longer-term release cadence.

Where Retell AI leans on voice ai, conversation flows and agent composition, Cherry Studio focuses on desktop ai client, release process and backports.

Cherry Studio and Retell AI have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

9. Docling · velocity 5.0

Docling adds Surya 2.5 and calendar files while patching format edge cases daily.

Its velocity score of 5.0/10 reflects longer-term release cadence.

Where Retell AI leans on voice ai, conversation flows and agent composition, Docling focuses on document parsing, ocr and model presets.

Docling and Retell AI have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

10. opencode · velocity 5.0

Opencode's process daemon reaches 0.5.0 and moves to protocol 8.

Its velocity score of 5.0/10 reflects longer-term release cadence.

Where Retell AI leans on voice ai, conversation flows and agent composition, opencode focuses on ai coding agent, cli and open source.

opencode and Retell AI have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

11. OpenHands · velocity 5.0

OpenHands' latest releases are security rebuilds of its Agent Canvas.

Its velocity score of 5.0/10 reflects longer-term release cadence.

Where Retell AI leans on voice ai, conversation flows and agent composition, OpenHands focuses on coding agents, saas and enterprise.

OpenHands and Retell AI have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

12. AutoGPT · velocity 5.0

AutoGPT 0.11.1 makes background subtasks report back and skills run as /commands.

Its velocity score of 5.0/10 reflects longer-term release cadence.

Where Retell AI leans on voice ai, conversation flows and agent composition, AutoGPT focuses on agentic platform, human in the loop and self hosting.

AutoGPT and Retell AI have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.

Frequently asked questions

What are the best alternatives to Retell AI?

The top Retell AI alternatives we currently track in AI assistants are GitHub Copilot, LobeChat, DocsBot AI, InvokeAI, Claude, ranked by recent ship velocity.

How is this list of Retell AI alternatives ranked?

Alternatives are ranked by Sparkpulse's velocity_score — release cadence + 30-day spark count + sector-relative ship rate.

Can I compare Retell AI directly with one of these alternatives?

Yes — every card has a "Compare with Retell AI" link to a side-by-side /compare page.