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Comparison · Infra & APIs
Ably vs Lima
A side-by-side editorial comparison of Ably and Lima — release velocity, themes, recent moves, and the top alternatives to consider.
Ably vs Lima: at a glance
| Feature | Ably | Lima |
|---|---|---|
| Sector | Infra & APIs | Infra & APIs |
| Velocity score | 7.5 | 2.5 |
| Sparks · 30d | 2 | 0 |
| Top themes | liveobjects, ai-transport-sdk, realtime-state-sync, durable-agents | virtual-machines, containers, windows-support, cross-platform |
| Last editorial update | 4d ago | 21d ago |
| Website | — | Visit → |
What is Ably?
Ably ships LiveObjects as production-ready and expands its AI Transport SDK to cover Temporal durable workflows.
Ably is shipping simultaneously across infrastructure SDKs and AI-specific capabilities. LiveObjects — a real-time state sync layer for nested maps and counters — graduated from experimental to production-stable in the Java and Cocoa SDKs this month, with path-based access and resilient subscriptions that survive underlying object replacement. The AI Transport SDK gained Temporal durable-workflow support and OpenAI Responses API streaming. On the infrastructure side, the .NET SDK reduces reconnect latency from 120s to ~25s and the Terraform provider got a major maturity pass with moderation rules and a config importer.
What is Lima?
Lima keeps widening which machines it can run on, and run.
Lima runs Linux virtual machines for container workloads, and its 2.x line has been a steady expansion of the host and guest matrix. macOS and FreeBSD guests arrived at 2.1.0, Windows Server 2025 and Windows 11 guests followed through 2.2.0, and 2.3.0-beta.0 adds an experimental HCS driver for Windows hosts along with further Windows guest work. Each platform addition lands marked experimental first, and much of the surrounding work is CLI and template maintenance.
Ably vs Lima: editorial side-by-side
Ably
7.5INFRA · APIS
Ably ships LiveObjects as production-ready and expands its AI Transport SDK to cover Temporal durable workflows.
◆ Current state
Ably is shipping simultaneously across infrastructure SDKs and AI-specific capabilities. LiveObjects — a real-time state sync layer for nested maps and counters — graduated from experimental to production-stable in the Java and Cocoa SDKs this month, with path-based access and resilient subscriptions that survive underlying object replacement. The AI Transport SDK gained Temporal durable-workflow support and OpenAI Responses API streaming. On the infrastructure side, the .NET SDK reduces reconnect latency from 120s to ~25s and the Terraform provider got a major maturity pass with moderation rules and a config importer.
◆ Where it's heading
The direction is Ably as AI agent infrastructure. LiveObjects' own documentation positions it explicitly for 'AI agents, live configurations, and collaborative experiences.' The AI Transport SDK is a purpose-built layer for agentic workflows — durable sessions, multi-turn conversations, tool execution — layered on Ably's realtime primitives. This is a deliberate expansion from realtime messaging platform into the transport layer that agents run on.
◆ Prediction
The AI Transport SDK will add more model provider codecs — the OpenAI Responses integration suggests Anthropic or Gemini support is next. LiveObjects needs to reach stable across remaining SDKs (Python, .NET) before the feature can be adopted uniformly.
Lima
2.5INFRA · APIS
Lima keeps widening which machines it can run on, and run.
◆ Current state
Lima runs Linux virtual machines for container workloads, and its 2.x line has been a steady expansion of the host and guest matrix. macOS and FreeBSD guests arrived at 2.1.0, Windows Server 2025 and Windows 11 guests followed through 2.2.0, and 2.3.0-beta.0 adds an experimental HCS driver for Windows hosts along with further Windows guest work. Each platform addition lands marked experimental first, and much of the surrounding work is CLI and template maintenance.
◆ Where it's heading
The project is converging on a single tool that runs any guest on any host, and it is doing so from both ends: guest support and host drivers advance in alternating releases. Windows is the current focus on both sides, having moved from an unsupported host default to qemu and now to a native HCS driver option. The LFX mentee contributions behind much of this suggest the platform matrix expands as contributor capacity allows rather than on a roadmap.
◆ Prediction
The HCS driver should follow the same path the other platform additions took, moving from experimental to a supported or default option on Windows hosts once the guest work stabilises around it.
Alternatives to Ably and Lima
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 Lima.
CircleCI
CircleCI ships a hosted MCP server and GA's multi-resource runner autoscaling in the same week
Kubernetes
Kubernetes v1.37 closes a storage hygiene gap with native PVC usage tracking in Beta.
Skipper
Skipper patches three real routing correctness bugs and ships multiarch Docker images in a dense fix cycle.
ToolJet
ToolJet bundles MCP into its enterprise image, making ToolJet apps natively accessible to AI coding agents.
Parse Server
Parse Server 9.10.1 alpha is a rolling security audit — six CVEs patched in four weeks.
Recent activity from Ably and Lima
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 5d agoAbly.NET SDK cuts reconnection wait from 120s to ~25s, corrects connection state edge cases
- 11d agoAblyJava SDK v1.8.1: LiveObjects Stable Release ⚡
- 14d agoAblyTerraform Provider adds moderation rules, data sources, and config importer tool
- 19d agoAblyCocoa SDK v1.4.0: LiveObjects stable release
- 21d agoLima2.3.0-beta.0: an experimental HCS driver for Windows hosts
- 29d agoAblyAbly-js v2.28.0: end to end encryption for annotation data payloads
- 29d agoAblyAI Transport JS SDK v0.8.0: Temporal plugin and Vercel AI SDK v7 support ⚡
- 2mo agoLima2.2.0-rc.0: Windows 11 guests and a sudo opt-out
- 2mo agoLima2.2.0-beta.0: Windows Server 2025 guests and TPM emulation
- 4mo agoLima2.1.2-beta.0: CLI mount and rsync path fixes
- 6mo agoLima2.1.0-rc.1: macOS and FreeBSD guests, plus an agent sync guard ⚡
Frequently asked questions
What is the difference between Ably and Lima?
They serve adjacent needs but don't currently overlap on shipped themes. Ably is currently shipping more aggressively (velocity 7.5 vs 2.5), with 2 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 Ably better than Lima?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Ably is currently shipping more aggressively (velocity 7.5 vs 2.5), with 2 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 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 Lima?
Top Lima alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Lima alternatives" section above for the current picks, or visit /alternatives/lima for the full list with editorial commentary on each.