# Google Cloud Pub/Sub vs Temporal

**Leader by Vioscale score:** Temporal

| Attribute | Google Cloud Pub/Sub | Temporal |
|---|---|---|
| **Vioscale score** | 53.4 (49% (low)) | 71 (76% (high)) |
| activity.commits_last_30d | - | 100 |
| adoption.dependent_repos | - | 30 |
| adoption.github_stars | - | 22,544 |
| adoption.package_downloads_weekly | - | 7,338,116 |
| 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. | A platform that enables applications to automatically recover from failures by maintaining execution state and resuming operations without manual intervention or data loss. |
| 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","message_replay":true,"persistent_log":true,"geo_replication":true,"managed_offering":true,"delivery_guarantee":"at_least_once","horizontal_scaling":true}` |
| integrations.count | 3 | 2 |
| integrations.list | `[{"name":"BigQuery"},{"name":"Cloud Storage"},{"name":"Dataflow"}]` | `[{"name":"Google ADK"},{"name":"OpenAI Agents SDK"}]` |
| language.primary | - | Go |
| license.spdx | - | MIT |
| market.availability | `{"hqCountry":"US","primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"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":"hybrid","plans":[{"free":true,"name":"Open Source","features":["Full durable execution capabilities","Self-hosted deployment","Community support"],"description":"Self-hosted open-source platform","contactSales":false},{"free":false,"name":"Temporal Cloud Pay-as-You-Go","components":[{"per":{"qty":1,"unit":"action"},"kind":"metered","amount":0.000025,"currency":"USD"}],"description":"Managed cloud service with consumption-based billing","contactSales":false}],"summary":"Free open-source self-hosted. Cloud from $0.000025 per action. 90-day free trial with $1,000 credits.","currency":"USD","freeTier":true,"sourceUrl":"https://temporal.io/blog/introducing-pay-as-you-go-pricing-for-temporal-cloud-on-the-aws-marketplace","retrievedAt":"2026-08-14T12:10:32.063Z","freeTrialDays":90,"startingPrice":{"amount":0.000025,"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 | - | 4 |
| release.history | - | `[{"url":"https://github.com/temporalio/temporal/releases/tag/v1.31.2","date":"2026-07-08T17:10:11Z","type":"stable","version":"v1.31.2"},{"url":"https://github.com/temporalio/temporal/releases/tag/v1.30.6","date":"2026-07-08T17:10:18Z","type":"stable","version":"v1.30.6"},{"url":"https://github.com/temporalio/temporal/releases/tag/v1.30.5","date":"2026-06-15T20:06:55Z","type":"stable","version":"v1.30.5"},{"url":"https://github.com/temporalio/temporal/releases/tag/v1.29.7","date":"2026-06-12T16:51:23Z","type":"stable","version":"v1.29.7"},{"url":"https://github.com/temporalio/temporal/releases/tag/v1.31.1","date":"2026-06-10T16:46:24Z","type":"stable","version":"v1.31.1"},{"url":"https://github.com/temporalio/temporal/releases/tag/v1.30.4.1","date":"2026-05-01T22:37:04Z","type":"stable","version":"v1.30.4.1"},{"url":"https://github.com/temporalio/temporal/releases/tag/v1.31.0","date":"2026-04-29T21:09:18Z","type":"stable","version":"v1.31.0"},{"url":"https://github.com/temporalio/temporal/releases/tag/v1.29.6.1","date":"2026-05-06T20:41:23Z","type":"stable","version":"v1.29.6.1"},{"url":"https://github.com/temporalio/temporal/releases/tag/v1.30.4","date":"2026-04-10T21:06:39Z","type":"stable","version":"v1.30.4"},{"url":"https://github.com/temporalio/temporal/releases/tag/v1.29.6","date":"2026-04-10T21:07:12Z","type":"stable","version":"v1.29.6"},{"url":"https://github.com/temporalio/temporal/releases/tag/v1.28.4","date":"2026-04-10T21:07:31Z","type":"stable","version":"v1.28.4"},{"url":"https://github.com/temporalio/temporal/releases/tag/v1.30.3","date":"2026-04-01T17:55:04Z","type":"stable","version":"v1.30.3"},{"url":"https://github.com/temporalio/temporal/releases/tag/v1.29.5","date":"2026-04-01T17:55:00Z","type":"stable","version":"v1.29.5"},{"url":"https://github.com/temporalio/temporal/releases/tag/v1.28.3.1","date":"2026-03-26T20:05:30Z","type":"stable","version":"v1.28.3.1"},{"url":"https://github.com/temporalio/temporal/releases/tag/v1.29.4.1","date":"2026-03-25T17:07:30Z","type":"stable","version":"v1.29.4.1"},{"url":"https://github.com/temporalio/temporal/releases/tag/v1.30.2","date":"2026-03-24T22:40:36Z","type":"stable","version":"v1.30.2"},{"url":"https://github.com/temporalio/temporal/releases/tag/v1.28.3","date":"2026-03-18T17:30:05Z","type":"stable","version":"v1.28.3"},{"url":"https://github.com/temporalio/temporal/releases/tag/v1.29.4","date":"2026-03-07T03:40:00Z","type":"stable","version":"v1.29.4"},{"url":"https://github.com/temporalio/temporal/releases/tag/v1.30.1","date":"2026-03-02T22:45:48Z","type":"stable","version":"v1.30.1"},{"url":"https://github.com/temporalio/temporal/releases/tag/v1.29.3","date":"2026-02-04T18:17:36Z","type":"stable","version":"v1.29.3"}]` |
| reliability.sla_pct | - | 99.9 |
| reliability.status_page | yes | yes |
| security.disclosure_policy | - | yes |
| security.gdpr | - | yes |
| security.hipaa | - | yes |
| security.scorecard | - | 5.7 |
| security.soc2 | - | yes |
| security.vulnerabilities | - | `{"count":6,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=go.temporal.io%2Fserver&per_page=100","last_12m":5,"max_severity":"MODERATE"}` |

## Capabilities (Message Queues)

| Capability | Google Cloud Pub/Sub | Temporal |
|---|:--:|:--:|
| **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 | - | - |
| 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 2026-09-01T15:08:09.668Z. "-" = undocumented, not absent.*