Comparison

Fission vs Modal

No clear leader: Modal (55.2) and Fission (53.5) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Fission full profile →Modal full profile →

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Fission54

Modal55

Attribute comparison across 2 tools
Attribute	Fission	Modal
Vioscale score	54 / 100medium · 54%updating	55 / 100medium · 74%updating
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	open_source	freemium
Price levelpricing.price_level	free	high
Transparentpricing.transparent	✓	✓
Integrations
Countintegrations.count	6	2
Security
Hipaasecurity.hipaa	-	✓
Scorecardsecurity.scorecard	7.7	-
Soc2security.soc2	-	✓
Vulnerabilitiessecurity.vulnerabilities	Count: 18 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Ffission%2Ffission&per_page=100 · Last 12m: 18 · Max severity: CRITICAL	-
Reliability
Status pagereliability.status_page	-	✓
Adoption
Dependent reposadoption.dependent_repos	3	-
Github starsadoption.github_stars	8,913	-
Activity
Commits last 30dactivity.commits_last_30d	60	-
Release
Cadence daysrelease.cadence_days	24	-
Historyrelease.history	20 items	-
License
Spdxlicense.spdx	Apache-2.0	-
Language
Primarylanguage.primary	Go	-
Market
Availabilitymarket.availability	-	Available worldwide · Popular in US · HQ US

Score

Vioscale score

Fission54 / 100medium · 54%updating

Modal55 / 100medium · 74%updating

Pricing

Free tier

Fission✓

Modal✓

Model

Fissionopen_source

Modalfreemium

Price level

Fissionfree

Modalhigh

Transparent

Fission✓

Modal✓

Integrations

Count

Fission6

Modal2

Security

Hipaa

Fission–

Modal✓

Scorecard

Fission7.7

Modal–

Soc2

Fission–

Modal✓

Vulnerabilities

FissionCount: 18 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Ffission%2Ffission&per_page=100 · Last 12m: 18 · Max severity: CRITICAL

Modal–

Reliability

Status page

Fission–

Modal✓

Adoption

Dependent repos

Fission3

Modal–

Github stars

Fission8,913

Modal–

Activity

Commits last 30d

Fission60

Modal–

Release

Cadence days

Fission24

Modal–

History

Fission20 items

Modal–

License

Spdx

FissionApache-2.0

Modal–

Language

Primary

FissionGo

Modal–

Market

Availability

Fission–

ModalAvailable worldwide · Popular in US · HQ US

Capabilities

Feature-by-feature on the axes that matter for serverless & edge platforms. “-” means undocumented, not absent.

Capability comparison for Serverless & Edge Platforms
Capability	Fission	Modal
Core
Execution substrate	Container	Container
Language / runtime breadth	Python, NodeJS, Go, Rust, C#, PHP (extensible to any language)	Python
Reach
Runs at global edge PoPs	✗	✓
Scale
Scale to zero	✓	✓
Performance
Cold-start profile	Provisioned concurrency	Low
Limits
Max execution duration	-	-
Integration
Event source breadth	HTTP and event triggers	HTTP, cron/scheduled, events
HTTP endpoint trigger	✓	✓
Cron / scheduled invocations	-	✓
State
Durable state / workflow primitive	-	✓
Flexibility
Bring-your-own runtime / container	✓	✓
Deployment
Hosting	Cloud + self-hosted	Cloud only
Ops
Built-in logs / metrics / tracing	✓	✓
Extensibility
CLI + IaC / framework support	✓	✓

Core

Execution substrate

FissionContainer

ModalContainer

Language / runtime breadth

FissionPython, NodeJS, Go, Rust, C#, PHP (extensible to any language)

ModalPython

Reach

Runs at global edge PoPs

Fission✗

Modal✓

Scale

Scale to zero

Fission✓

Modal✓

Performance

Cold-start profile

FissionProvisioned concurrency

ModalLow

Limits

Max execution duration

Fission-

Modal-

Integration

Event source breadth

FissionHTTP and event triggers

ModalHTTP, cron/scheduled, events

HTTP endpoint trigger

Fission✓

Modal✓

Cron / scheduled invocations

Fission-

Modal✓

State

Durable state / workflow primitive

Fission-

Modal✓

Flexibility

Bring-your-own runtime / container

Fission✓

Modal✓

Deployment

Hosting

FissionCloud + self-hosted

ModalCloud only

Ops

Built-in logs / metrics / tracing

Fission✓

Modal✓

Extensibility

CLI + IaC / framework support

Fission✓

Modal✓

What each one is

The product in its own terms, so the numbers below have context.

Fission

Developers write short-lived functions that are triggered by HTTP requests or events, while the framework handles Kubernetes infrastructure management automatically. This eliminates the need to manually build containers or manage registries.

Independently observed

Modal

A serverless cloud platform designed for running AI inference, training, batch processing, and interactive development. It automatically scales compute resources on demand, offers integrated logging and metrics, and provides a Python-native SDK for defining infrastructure as code.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Fission

Open sourceFree tier

Free, open source under Apache License

as of 2026-08-14verify ↗

Modal

from $100/moUsage-basedFree tier

Pay-as-you-go based on GPU/CPU seconds and memory used. Starter free tier with $30/month credit; Team at $250/month base; Enterprise custom pricing with compliance options.

StarterFree
- Up to 3 workspace seats
- 100 containers
- 10 GPU concurrency
- 200 deployed apps
- Limited Scheduled and Web Functions
- +5 more
Team$250/month base + usage + $100/month compute credit
- Unlimited workspace seats
- 5000 containers
- 50 GPU concurrency
- 1000 deployed apps
- Unlimited Scheduled Functions
- +6 more
EnterpriseContact sales
- Unlimited seats
- Volume-based pricing discounts
- Custom GPU concurrency limits
- Embedded ML engineering services
- Environment-level budgets
- +5 more

as of 2026-08-14verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	Fission	Modal
WebPlatforms	✗	✓
CLIPlatforms	✓	✓
Cloud / SaaSDeployment	✓	✓
Self-hostedDeployment	✓	✗
On-premiseDeployment	✓	✗

Platforms

Web

Fission✗

Modal✓

CLI

Fission✓

Modal✓

Deployment

Cloud / SaaS

Fission✓

Modal✓

Self-hosted

Fission✓

Modal✗

On-premise

Fission✓

Modal✗

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Fission

6 total

Kubernetes
Istio
Fluentd
Prometheus
Grafana
MCP

Independently observed

Modal

2 total

AWS Marketplace
GCP Marketplace

Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.