ToolJet
ToolJet runs two release trains at once, and neither has changed direction in months
Comparison · Infra & APIs
Ably vs ElevenLabs
A side-by-side editorial comparison of Ably and ElevenLabs — release velocity, themes, recent moves, and the top alternatives to consider.
Ably vs ElevenLabs: at a glance
| Feature | Ably | ElevenLabs |
|---|---|---|
| Sector | Infra & APIs | Infra & APIs |
| Velocity score | 6.3 | 6.3 |
| Sparks · 30d | 1 | 1 |
| Top themes | realtime-infrastructure, ai-agents, durable-execution, liveobjects | voice agents, agent versioning, procedures, telephony |
| Last editorial update | 1d ago | 5d ago |
| Website | — | Visit → |
What is Ably?
Ably is building an agent transport layer on its realtime core, shipping AI SDK versions every ten days.
Two release trains run side by side in this feed. The AI Transport SDK is moving fast and pre-1.0 — durable execution in 0.5.0, mid-run steering in 0.6.0, an OpenAI Responses codec in 0.7.0, each roughly ten days apart and each carrying breaking changes. The Pub/Sub and Java SDKs move at a steadier pace, working through LiveObjects reach, React and React Native support, and now connectivity fallbacks.
What is ElevenLabs?
ElevenLabs is rebuilding voice agents as versioned software — branches, drafts, compiles, tests.
ElevenAgents now dominates the changelog, and it ships software-engineering primitives rather than voice features: branches, rebase, merge previews, drafts, and per-test tool mocks. Procedures compile into agent workflows, knowledge bases have crawl jobs and bulk operations, and telephony has widened past Twilio to Exotel and SIP. The speech and music models still advance — Music v2, Speech Engine — but they now read as components sitting under an agent runtime.
Ably vs ElevenLabs: editorial side-by-side
Ably
6.3INFRA · APIS
Ably is building an agent transport layer on its realtime core, shipping AI SDK versions every ten days.
◆ Current state
Two release trains run side by side in this feed. The AI Transport SDK is moving fast and pre-1.0 — durable execution in 0.5.0, mid-run steering in 0.6.0, an OpenAI Responses codec in 0.7.0, each roughly ten days apart and each carrying breaking changes. The Pub/Sub and Java SDKs move at a steadier pace, working through LiveObjects reach, React and React Native support, and now connectivity fallbacks.
◆ Where it's heading
Ably is treating agent conversations as a transport problem — sessions, resumability, and multi-client reconciliation — rather than as a model-integration problem, and the primitives shipping in AI Transport keep pointing that way. The Pub/Sub line is being pulled along behind it: LiveObjects path APIs and React hooks are the state layer those agent sessions need. The pre-1.0 SDK will keep breaking as the shape settles, which is a reasonable trade while the category is unsettled.
◆ Prediction
Expect AI Transport to keep adding provider codecs beyond OpenAI Responses and to approach an API freeze as breaking changes get more expensive. LiveObjects support should continue spreading across the language SDKs, following the Java path-based API with other platforms.
ElevenLabs
6.3INFRA · APIS
ElevenLabs is rebuilding voice agents as versioned software — branches, drafts, compiles, tests.
◆ Current state
ElevenAgents now dominates the changelog, and it ships software-engineering primitives rather than voice features: branches, rebase, merge previews, drafts, and per-test tool mocks. Procedures compile into agent workflows, knowledge bases have crawl jobs and bulk operations, and telephony has widened past Twilio to Exotel and SIP. The speech and music models still advance — Music v2, Speech Engine — but they now read as components sitting under an agent runtime.
◆ Where it's heading
The company is converging on an agent SDLC: author in a branch, hold changes as drafts, preview the merge, compile, then test against mocked tools. Every release adds another step of that loop rather than another voice. The analytics surface — sentiment scoring, termination reasons, backchannel flags, per-branch call volume — is being built to close the same loop with production evidence.
◆ Prediction
With simulations, tool mocks and is_error failure paths now in place alongside branches and merge previews, the missing piece is a gate: expect evaluation runs that block a branch merge on regression rather than leaving testing as a manual step.
Alternatives to Ably and ElevenLabs
Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Ably or ElevenLabs.
Honeycomb
Honeycomb bets that the agent, not the engineer, should notice the anomaly first
Jenkins
Jenkins is shrinking its own war file and rebuilding its UI, one weekly release at a time
GitHub
Copilot's model roster churns weekly while GitHub quietly rewires policy and billing plumbing
incident.io
Nexus does the diagnosis; the rest is on-call plumbing
werf
Four channels, one fix stream — werf's releases are mostly concurrency repairs.
See all Ably alternatives → · See all ElevenLabs alternatives →
Recent activity from Ably and ElevenLabs
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoAblyPub/Sub JS SDK v2.27.0: Fallback for networks that block WebSockets
- 9d agoElevenLabsPer-test tool mocks and a knowledge-base system tool
- 11d agoAblyAI Transport JS SDK v0.7.0: OpenAI Responses codec ⚡
- 16d agoElevenLabsProcedure APIs: draft, compile and branch agent behavior ⚡
- 18d agoAblyPub/Sub JS SDK v2.26.0: React hook for LiveObjects
- 21d agoAblyAI Transport JS SDK v0.6.0: Mid-run steering
- 25d agoAblyPub/Sub JS SDK v2.25.0: Push notifications for React Native
- 29d agoAblyJava SDK v1.8.0: Support LiveObjects Path based API
- 1mo agoElevenLabsNested agent transfers gain push, pop and replace
- 1mo agoElevenLabsMerge and rebase previews for agent branches
- 1mo agoElevenLabsBranch rebase, plus product and termination filters
- 1mo agoElevenLabsIntroducing Music v2 ⚡
Frequently asked questions
What is the difference between Ably and ElevenLabs?
They serve adjacent needs but don't currently overlap on shipped themes. Ably and ElevenLabs are shipping at a similar cadence (velocity 6.3 vs 6.3, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Ably better than ElevenLabs?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Ably and ElevenLabs are shipping at a similar cadence (velocity 6.3 vs 6.3, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to Ably?
Top Ably alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Ably alternatives" section above for the current picks, or visit /alternatives/ably for the full list with editorial commentary on each.
What are the best alternatives to ElevenLabs?
Top ElevenLabs alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "ElevenLabs alternatives" section above for the current picks, or visit /alternatives/elevenlabs for the full list with editorial commentary on each.