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Comparison · DevOps
Heroku vs Rivet
A side-by-side editorial comparison of Heroku and Rivet — release velocity, themes, recent moves, and the top alternatives to consider.
Heroku vs Rivet: at a glance
| Feature | Heroku | Rivet |
|---|---|---|
| Sector | DevOps, Infra & APIs | DevOps |
| Velocity score | 5.0 | 6.3 |
| Sparks · 30d | 0 | 1 |
| Top themes | paas-maintenance, runtime-updates, heroku-ai, model-integration | actor-model, ai-agents, serverless, rust-rewrite |
| Last editorial update | 1mo ago | 2d ago |
| Website | Visit → | — |
What is Heroku?
Heroku is keeping every runtime fresh and quietly extending its inference catalogue with Claude Opus 4.7.
Heroku's recent activity is the steady drumbeat of a managed PaaS: stack image refreshes (Heroku-22 and Heroku-24), routine .NET SDK updates across the 8/9/10 lines, Python buildpack bumps for Pipenv/Poetry/uv, Go 1.25.9 and 1.26.2 enablement, and a JRuby update. The one platform-level move is that Heroku AI inference now supports Claude Opus 4.7 alongside the existing model lineup.
What is Rivet?
Rivet is rebuilding its actor backend into managed infrastructure for AI agents.
Rivet ships an actor-model backend - durable per-actor state, SQLite, queues - and is now stacking AI-agent infrastructure on top of it: agentOS (WASM micro-VMs for running coding agents), Secure Exec (isolated process execution), and SDKs in Rust and Effect. The pace is unusual: five 'Introducing' releases in ten days. The core is being rewritten in Rust as it goes.
Heroku vs Rivet: editorial side-by-side
Heroku
5.0DEVOPSINFRA · APIS
Heroku is keeping every runtime fresh and quietly extending its inference catalogue with Claude Opus 4.7.
◆ Current state
Heroku's recent activity is the steady drumbeat of a managed PaaS: stack image refreshes (Heroku-22 and Heroku-24), routine .NET SDK updates across the 8/9/10 lines, Python buildpack bumps for Pipenv/Poetry/uv, Go 1.25.9 and 1.26.2 enablement, and a JRuby update. The one platform-level move is that Heroku AI inference now supports Claude Opus 4.7 alongside the existing model lineup.
◆ Where it's heading
Heroku is in disciplined-maintenance mode for the core PaaS — every supported language gets timely upstream version coverage, and the stack images stay patched. The interesting under-the-radar push is around AI: the documentation surface now includes Inference API, AI Models, Tool Use, Vector Database, and AI Integrations, suggesting Heroku has been steadily building an AI inference platform on top of the dyno foundation rather than just shipping runtime bumps.
◆ Prediction
Expect more frontier-model additions to Heroku AI on a roughly biweekly cadence, plus expanded vector-database and tool-use docs as customers actually start building agent workflows. On the platform side, watch for a Heroku-26 stack preview as the multi-year stack lifecycle continues — and continued Python tooling refresh as uv displaces Pipenv in popularity.
Rivet
6.3DEVOPS
Rivet is rebuilding its actor backend into managed infrastructure for AI agents.
◆ Current state
Rivet ships an actor-model backend - durable per-actor state, SQLite, queues - and is now stacking AI-agent infrastructure on top of it: agentOS (WASM micro-VMs for running coding agents), Secure Exec (isolated process execution), and SDKs in Rust and Effect. The pace is unusual: five 'Introducing' releases in ten days. The core is being rewritten in Rust as it goes.
◆ Where it's heading
The center of gravity is moving from a framework for stateful actors toward a managed platform for hosting agents and their compute. Rivet Compute adds one-command serverless hosting; agentOS and Secure Exec target the sandbox-for-coding-agents market directly. Each release widens the surface a developer can run without managing infrastructure.
◆ Prediction
Expect Rivet to keep filling out the managed-hosting story around Compute - pricing, regions, and tighter agentOS/Secure Exec integration so the actor model and the agent sandbox share one deploy path.
Alternatives to Heroku and Rivet
Other DevOps 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 Heroku or Rivet.
Astro
Astro 7.0 lands a Rust compiler and advanced routing as the framework chases build speed
Deno
Deno expands from runtime to platform — desktop apps, agent firewalls, and managed deploy
Bun
Bun keeps absorbing the toolchain — image processing, HTTP/3, and a built-in test runner
Hono
Hono is in a sustained security-hardening cycle, patching middleware and serverless adapters
Svelte
Svelte's remote functions grow into a real-time data layer as the API stabilizes
See all Heroku alternatives → · See all Rivet alternatives →
Recent activity from Heroku and Rivet
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2d agoRivetIntroducing agentOS v0.2
- 8d agoRivetSecure Exec v0.3
- 10d agoRivetIntroducing Rivet Compute ⚡
- 10d agoRivetIntroducing the Rust SDK for Rivet Actors
- 11d agoRivetIntroducing the Effect SDK for Rivet Actors
- 12d agoRivetIntroducing Rivet 2.3
- 2mo agoHerokuHeroku-22 and Heroku-24 stacks updated
- 2mo agoHeroku.NET SDK 10.0.107 and 10.0.203 are now available
- 2mo agoHerokuHeroku AI now supports Claude Opus 4.7
- 2mo agoHeroku.NET SDK 8.0.126, 8.0.420, 9.0.116, 9.0.313, 10.0.106 and 10.0.202 are now available
- 2mo agoHerokuNew --start-cmd flag in heroku local command Python buildpacks updated to Pipenv 2026.5.2, Poetry 2.3.4 and uv 0.11.6
- 2mo agoHerokuGo 1.25.9 and 1.26.2 are now available Heroku-22 and Heroku-24 stacks updated JRuby version 10.0.5.0 is now available
Frequently asked questions
What is the difference between Heroku and Rivet?
They serve adjacent needs but don't currently overlap on shipped themes. Rivet is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 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 Heroku better than Rivet?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Rivet is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other DevOps products to evaluate alongside.
What are the best alternatives to Heroku?
Top Heroku alternatives in DevOps are ranked by recent ship velocity. Browse the "Heroku alternatives" section above for the current picks, or visit /alternatives/heroku for the full list with editorial commentary on each.
What are the best alternatives to Rivet?
Top Rivet alternatives in DevOps are ranked by recent ship velocity. Browse the "Rivet alternatives" section above for the current picks, or visit /alternatives/rivet for the full list with editorial commentary on each.