# Google Cloud Pub/Sub vs Inngest

**Leader by Vioscale score:** Inngest

| Attribute | Google Cloud Pub/Sub | Inngest |
|---|---|---|
| **Vioscale score** | 53.4 (49% (low)) | 60.6 (74% (medium)) |
| activity.commits_last_30d | - | 88 |
| adoption.dependent_repos | - | 2 |
| adoption.github_stars | - | 5,765 |
| adoption.package_downloads_weekly | - | 1,746,391 |
| deployment.options | `{"cloud":true}` | `{"cloud":true,"self_hosted":true}` |
| description.long | A cloud-based publish/subscribe messaging system that enables applications to ingest and stream event data at scale with guaranteed delivery, automatic scaling, and built-in replay capabilities. Integrates with data warehouses and stream processing pipelines for real-time analytics. | Provides an execution layer that automatically handles durability, retries, and state management for background jobs, scheduled tasks, and AI workflows through code-based function definitions. |
| features.capabilities | `{"hosting":"cloud","ordering":"per_key","paradigm":"pubsub","message_replay":true,"persistent_log":true,"consumer_groups":true,"geo_replication":true,"managed_offering":true,"stream_processing":true,"delivery_guarantee":"at_least_once","horizontal_scaling":true}` | `{"hosting":"both","paradigm":"durable_exec","protocol":"HTTPS","message_replay":true,"persistent_log":true,"consumer_groups":false,"kafka_compatible":false,"managed_offering":true,"stream_processing":false,"delivery_guarantee":"at_least_once","horizontal_scaling":true}` |
| integrations.count | 3 | 5 |
| integrations.list | `[{"name":"BigQuery"},{"name":"Cloud Storage"},{"name":"Dataflow"}]` | `[{"name":"Datadog"},{"name":"Vercel"},{"name":"OpenAI"},{"name":"Discord"},{"name":"Deno"}]` |
| language.primary | - | Go |
| license.spdx | - | Apache-2.0 |
| market.availability | `{"hqCountry":"US","primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"usage","plans":[{"free":false,"name":"Standard Pub/Sub","summary":"$40/TiB throughput + $0.27/GiB-month storage (first 10 GiB throughput free)","features":["At-least-once message delivery","Per-key message ordering","Pull and push delivery modes","Cross-zone replication","Automatic scaling and provisioning","Message retention and snapshots"],"components":[{"per":{"qty":1,"unit":"TiB"},"kind":"metered","amount":40,"currency":"USD"},{"per":{"qty":1,"unit":"GiB-month"},"kind":"metered","amount":0.27,"currency":"USD"}],"description":"Pay-as-you-go pricing based on message throughput and retention","contactSales":false,"includedLimits":{"free_throughput":"10 GiB/month"}}],"addOns":[{"name":"BigQuery Subscription","components":[{"per":{"qty":1,"unit":"TiB"},"kind":"metered","amount":50,"currency":"USD"}]},{"name":"Cloud Storage Subscription","components":[{"per":{"qty":1,"unit":"TiB"},"kind":"metered","amount":50,"currency":"USD"}]},{"name":"Kinesis Data Streams Import","components":[{"per":{"qty":1,"unit":"TiB"},"kind":"metered","amount":50,"currency":"USD"}]},{"name":"Other Source Imports (Azure Event Hubs, AWS MSK, Confluent Cloud)","components":[{"per":{"qty":1,"unit":"TiB"},"kind":"metered","amount":80,"currency":"USD"}]}],"summary":"Usage-based: $40/TiB throughput, $0.27/GiB-month storage. Free tier: 10 GiB/month throughput.","currency":"USD","freeTier":true,"sourceUrl":"https://cloud.google.com/pubsub","retrievedAt":"2026-08-05T13:22:58.268Z","startingPrice":{"amount":0.27,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"subscription","plans":[{"free":true,"name":"Hobby","summary":"Free","features":["50k executions","5 concurrent executions","500 MB span data ingested","10K scores","500k events ingested","100k queue depth","50 realtime connections","Basic tracing, metrics, and alerts","3 users","3 workers","Unlimited serverless workers"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"For individual developers and small projects getting started with durable execution.","contactSales":false,"includedLimits":{"users":"3","events":"500k/mo","scores":"10K","workers":"3","span_data":"500 MB","executions":"50k/mo","queue_depth":"100k","realtime_connections":"50","concurrent_executions":"5"}},{"free":false,"name":"Pro","summary":"Starting at $99/mo + metered usage","features":["1M executions included","Pay as you go up to 20M","100+ concurrent executions","5 GB span data ingested","50K scores","5M+ events ingested","1M+ queue depth","1000 realtime connections","Granular tracing, metrics, alerts + 7 day trace retention","Increased throughput","15 users","20 workers","Unlimited serverless workers"],"components":[{"kind":"fixed","amount":99,"period":"month","currency":"USD"},{"per":{"qty":25,"unit":"concurrent_execution"},"kind":"metered","amount":25,"currency":"USD"},{"per":{"qty":1,"unit":"gb"},"kind":"metered","amount":3,"currency":"USD"},{"per":{"qty":1000000,"unit":"event"},"kind":"metered","amount":0.5,"currency":"USD"},{"per":{"qty":1000,"unit":"score"},"kind":"metered","amount":1.5,"currency":"USD"},{"kind":"per_unit","unit":"user","amount":10,"period":"month","currency":"USD"},{"kind":"per_unit","unit":"worker","amount":10,"period":"month","currency":"USD"}],"description":"For growing teams building production-ready workflows with increased scale and reliability.","contactSales":false,"includedLimits":{"users":"15","events":"5M+/mo","scores":"50K","workers":"20","span_data":"5 GB","executions":"1M + pay as you go up to 20M","queue_depth":"1M+","realtime_connections":"1000","concurrent_executions":"100+"}},{"free":false,"name":"Enterprise","summary":"Custom pricing. Contact sales.","features":["Custom executions","Custom concurrent executions","Custom span data ingested","Custom scores","Custom events ingested","Custom queue depth","Custom realtime connections","Advanced tracing, metrics, alerts + 90 day trace retention","Dedicated Slack channel","SAML, RBAC, audit trails"],"description":"For organizations running critical workflows at scale with advanced security, support, and customization.","contactSales":true}],"addOns":[{"name":"HIPAA BAAs"},{"name":"Advanced observability","components":[{"kind":"one_time","amount":300,"currency":"USD"}]}],"summary":"Free tier available. Pro from $99/mo + metered usage.","currency":"USD","freeTier":true,"sourceUrl":"https://www.inngest.com/","retrievedAt":"2026-08-03T22:31:13.499Z","startingPrice":{"amount":0.5,"period":"month","currency":"USD"},"billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | commercial |
| pricing.price_level | low | low |
| pricing.transparent | no | yes |
| release.cadence_days | - | 1 |
| release.history | - | `[{"url":"https://github.com/inngest/inngest/releases/tag/v1.43.0","date":"2026-08-20T15:03:27Z","type":"stable","version":"v1.43.0"},{"url":"https://github.com/inngest/inngest/releases/tag/v1.42.0","date":"2026-08-19T16:58:03Z","type":"stable","version":"v1.42.0"},{"url":"https://github.com/inngest/inngest/releases/tag/v1.41.1","date":"2026-08-05T18:45:29Z","type":"stable","version":"v1.41.1"},{"url":"https://github.com/inngest/inngest/releases/tag/v1.41.0","date":"2026-08-03T22:45:39Z","type":"stable","version":"v1.41.0"},{"url":"https://github.com/inngest/inngest/releases/tag/v1.40.0","date":"2026-07-30T21:12:16Z","type":"stable","version":"v1.40.0"},{"url":"https://github.com/inngest/inngest/releases/tag/v1.39.0","date":"2026-07-28T16:50:15Z","type":"stable","version":"v1.39.0"},{"url":"https://github.com/inngest/inngest/releases/tag/v1.38.1","date":"2026-07-21T21:45:02Z","type":"stable","version":"v1.38.1"},{"url":"https://github.com/inngest/inngest/releases/tag/v1.38.0","date":"2026-07-21T20:00:17Z","type":"stable","version":"v1.38.0"},{"url":"https://github.com/inngest/inngest/releases/tag/v1.37.0","date":"2026-07-14T21:06:57Z","type":"stable","version":"v1.37.0"},{"url":"https://github.com/inngest/inngest/releases/tag/v1.36.0","date":"2026-07-08T21:24:05Z","type":"stable","version":"v1.36.0"},{"url":"https://github.com/inngest/inngest/releases/tag/v1.35.0","date":"2026-07-07T23:33:52Z","type":"stable","version":"v1.35.0"},{"url":"https://github.com/inngest/inngest/releases/tag/v1.34.0","date":"2026-06-29T17:37:09Z","type":"stable","version":"v1.34.0"},{"url":"https://github.com/inngest/inngest/releases/tag/v1.33.1-test.3","date":"2026-06-25T16:32:45Z","type":"prerelease","version":"v1.33.1-test.3"},{"url":"https://github.com/inngest/inngest/releases/tag/v1.33.1-test.2","date":"2026-06-24T00:54:39Z","type":"prerelease","version":"v1.33.1-test.2"},{"url":"https://github.com/inngest/inngest/releases/tag/v1.33.0","date":"2026-06-23T17:42:25Z","type":"stable","version":"v1.33.0"},{"url":"https://github.com/inngest/inngest/releases/tag/v1.32.0","date":"2026-06-22T23:34:39Z","type":"stable","version":"v1.32.0"},{"url":"https://github.com/inngest/inngest/releases/tag/v1.31.0","date":"2026-06-18T20:14:25Z","type":"stable","version":"v1.31.0"},{"url":"https://github.com/inngest/inngest/releases/tag/v1.30.0","date":"2026-06-17T21:46:20Z","type":"stable","version":"v1.30.0"},{"url":"https://github.com/inngest/inngest/releases/tag/v1.29.0","date":"2026-06-17T20:17:10Z","type":"stable","version":"v1.29.0"},{"url":"https://github.com/inngest/inngest/releases/tag/v1.28.0","date":"2026-06-16T14:09:15Z","type":"stable","version":"v1.28.0"}]` |
| reliability.status_page | yes | yes |
| security.disclosure_policy | - | yes |
| security.hipaa | - | yes |
| security.soc2 | - | yes |
| security.vulnerabilities | - | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=inngest-cli&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Message Queues)

| Capability | Google Cloud Pub/Sub | Inngest |
|---|:--:|:--:|
| **Core** |  |  |
| Messaging paradigm | Pub/sub | Durable execution |
| **Correctness** |  |  |
| Delivery guarantee | At-least-once | At-least-once |
| Ordering guarantee | Per-key | - |
| **Durability** |  |  |
| Durable replayable log | ✓ | ✓ |
| Message replay / rewind | ✓ | ✓ |
| **Interop** |  |  |
| Wire protocol | - | HTTPS |
| Kafka-protocol compatible | - | ✗ |
| **Scale** |  |  |
| Partitioned horizontal scaling | ✓ | ✓ |
| Geo / cross-region replication | ✓ | - |
| **Consumption** |  |  |
| Consumer groups / competing consumers | ✓ | ✗ |
| Dead-letter queue | - | - |
| **Deployment** |  |  |
| Managed cloud offering exists | ✓ | ✓ |
| Hosting | Cloud only | Cloud + self-hosted |
| **Processing** |  |  |
| Built-in stream processing | ✓ | ✗ |

*Source: Vioscale. Generated 2026-09-01T15:22:42.370Z. "-" = undocumented, not absent.*