Expo
Expo keeps widening EAS from build/deploy into observability and testing
Comparison · Infra & APIs
ElevenLabs vs Ably
A side-by-side editorial comparison of ElevenLabs and Ably — release velocity, themes, recent moves, and the top alternatives to consider.
ElevenLabs vs Ably: at a glance
| Feature | ElevenLabs | Ably |
|---|---|---|
| Sector | Infra & APIs | Infra & APIs |
| Velocity score | 6.3 | 5.0 |
| Sparks · 30d | 0 | 0 |
| Top themes | voice-agents, agent-versioning, telephony, generative-audio | realtime, ai-agents, sdk, durable-execution |
| Last editorial update | 6d ago | 3d ago |
| Website | Visit → | — |
What is ElevenLabs?
ElevenLabs is treating agent config like version-controlled software while broadening its audio-model catalog.
ElevenLabs now runs on two tracks: a fast-maturing conversational-agent platform (ElevenAgents) and its core generative-audio models. Recent cadence leans heavily toward the agent side, which has gained software-style primitives — branch merge/rebase previews, a rebase endpoint, nested transfers, and per-branch call metrics. The audio side keeps shipping too, most visibly Music v2's structured composition model and the new Speech Engine for custom runtimes.
What is Ably?
Ably is repositioning its realtime infrastructure as the transport layer for AI agents
Ably keeps shipping across its SDK matrix (JS, Java, Cocoa), but the center of energy is the AI Transport SDK, iterating fast from v0.3.0 to v0.5.0. Each release hardens realtime messaging for AI agents: declarative codecs and Presence/LiveObjects pass-through (0.3.0), external data hydration to stitch an app's own message store to the channel (0.4.0), and durable execution via a Step primitive that survives process restarts and retries in Temporal or Vercel's Workflow Development Kit (0.5.0). Core Pub/Sub keeps advancing too — React Native push and a LiveObjects path-based API.
ElevenLabs vs Ably: editorial side-by-side
ElevenLabs
6.3INFRA · APIS
ElevenLabs is treating agent config like version-controlled software while broadening its audio-model catalog.
◆ Current state
ElevenLabs now runs on two tracks: a fast-maturing conversational-agent platform (ElevenAgents) and its core generative-audio models. Recent cadence leans heavily toward the agent side, which has gained software-style primitives — branch merge/rebase previews, a rebase endpoint, nested transfers, and per-branch call metrics. The audio side keeps shipping too, most visibly Music v2's structured composition model and the new Speech Engine for custom runtimes.
◆ Where it's heading
The through-line is treating agent configuration like a codebase: branches, rebase, merge previews, version metadata, and observability (SIP logs, sentiment scoring, backchannel detection). In parallel, ElevenLabs is widening what developers build with — a third telephony provider in Exotel, a Speech Engine for custom runtimes, and a growing model roster. It is shaping ElevenAgents as the managed path and Speech Engine as the unbundled one.
◆ Prediction
Given the preview-then-rebase progression, the next likely move is a first-class branch merge/commit or environment-promotion flow to close the version-control loop. Continued telephony-provider and model-catalog expansion is also visible in the cadence.
Ably
5.0INFRA · APIS
Ably is repositioning its realtime infrastructure as the transport layer for AI agents
◆ Current state
Ably keeps shipping across its SDK matrix (JS, Java, Cocoa), but the center of energy is the AI Transport SDK, iterating fast from v0.3.0 to v0.5.0. Each release hardens realtime messaging for AI agents: declarative codecs and Presence/LiveObjects pass-through (0.3.0), external data hydration to stitch an app's own message store to the channel (0.4.0), and durable execution via a Step primitive that survives process restarts and retries in Temporal or Vercel's Workflow Development Kit (0.5.0). Core Pub/Sub keeps advancing too — React Native push and a LiveObjects path-based API.
◆ Where it's heading
Ably is extending its realtime-delivery guarantees into agent orchestration: exactly-once-feeling semantics for agent turns, durability across at-least-once retries, and shared read-only conversation views for client and agent. The bet is that AI apps need the same ordering, presence, and history primitives Ably already sells — repackaged for agent runs rather than chat messages.
◆ Prediction
Expect the AI Transport SDK to keep maturing toward a 1.0 with fewer breaking changes, more workflow-engine integrations beyond Temporal and Vercel, and continued path-based LiveObjects work across language SDKs. The realtime core stays on its steady incremental cadence.
Alternatives to ElevenLabs and Ably
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 ElevenLabs or Ably.
Buildkite
Buildkite is rebuilding CI to be legible to AI agents, not just humans
Auth0
Auth0 keeps widening its enterprise identity surface, one GA at a time
GitHub
GitHub is building the governance layer for AI-written code.
Honeybadger
Honeybadger keeps broadening from error monitoring toward a full observability tool.
SpinupWP
SpinupWP keeps pulling routine server ops out of SSH and into the dashboard.
See all ElevenLabs alternatives → · See all Ably alternatives →
Recent activity from ElevenLabs and Ably
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 3d agoAblyPub/Sub JS SDK v2.25.0: Push notifications for React Native
- 7d agoAblyJava SDK v1.8.0: Support LiveObjects Path based API
- 8d agoElevenLabsPer-agent sentiment, nested transfers, backchannel detection
- 11d agoAblyAbly AI Transport JS SDK Release v0.5.0
- 11d agoAblyAI Transport JS SDK v0.5.0: Durable execution support through Steps
- 19d agoAblyAI Transport JS SDK v0.4.0: External data hydration support
- 19d agoAblyAbly AI Transport JS SDK Release v0.4.0
- 22d agoElevenLabsBranch merge & rebase previews, 7-day per-branch call metrics
- 29d agoElevenLabsBranch rebase onto main; filter conversations by product
- 1mo agoElevenLabsIntroducing Music v2 ⚡
- 1mo agoElevenLabseleven_v1 TTS and scribe_v1 models set for July 9 removal
- 1mo agoElevenLabsExotel joins Twilio and SIP as first-class telephony provider
Frequently asked questions
What is the difference between ElevenLabs and Ably?
They serve adjacent needs but don't currently overlap on shipped themes. ElevenLabs is currently shipping more aggressively (velocity 6.3 vs 5.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is ElevenLabs better than Ably?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. ElevenLabs is currently shipping more aggressively (velocity 6.3 vs 5.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
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.
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.