Comparison

txtai vs Upstash

On the evidence we track, Upstash leads this comparison with a composite score of 73/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

txtai full profile →Upstash full profile →

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txtai61

★Upstash73

Attribute comparison across 2 tools
Attribute	txtai	UpstashLeader
vioscaleAI score	61 / 100medium · 56%	73 / 100medium · 72%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	open_source	freemium
Price levelpricing.price_level	free	low
Starting pricepricing.starting_price	-	$5
Transparentpricing.transparent	✓	✓
Integrations
Countintegrations.count	5	6
Security
Disclosure policysecurity.disclosure_policy	-	✓
Gdprsecurity.gdpr	-	✓
Hipaasecurity.hipaa	-	✓
Scorecardsecurity.scorecard	5.4	-
Soc2security.soc2	-	✓
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=txtai&per_page=100 · Last 12m: 0	-
Reliability
Sla pctreliability.sla_pct	-	99.99
Status pagereliability.status_page	✓	✓
Adoption
Dependent reposadoption.dependent_repos	14	-
Github starsadoption.github_stars	13,018	-
Activity
Commits last 30dactivity.commits_last_30d	100	-
Release
Cadence daysrelease.cadence_days	27	-
Historyrelease.history	20 items	-
License
Spdxlicense.spdx	Apache-2.0	-
Language
Primarylanguage.primary	Python	-
Market
Availabilitymarket.availability	-	Available worldwide · Popular in US
Content
Faqcontent.faq	6 items	7 items

Score

vioscaleAI score

txtai61 / 100medium · 56%

Upstash73 / 100medium · 72%

Pricing

Free tier

txtai✓

Upstash✓

Model

txtaiopen_source

Upstashfreemium

Price level

txtaifree

Upstashlow

Starting price

txtai–

Upstash$5

Transparent

txtai✓

Upstash✓

Integrations

Count

txtai5

Upstash6

Security

Disclosure policy

txtai–

Upstash✓

Gdpr

txtai–

Upstash✓

Hipaa

txtai–

Upstash✓

Scorecard

txtai5.4

Upstash–

Soc2

txtai–

Upstash✓

Vulnerabilities

txtaiCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=txtai&per_page=100 · Last 12m: 0

Upstash–

Reliability

Sla pct

txtai–

Upstash99.99

Status page

txtai✓

Upstash✓

Adoption

Dependent repos

txtai14

Upstash–

Github stars

txtai13,018

Upstash–

Activity

Commits last 30d

txtai100

Upstash–

Release

Cadence days

txtai27

Upstash–

History

txtai20 items

Upstash–

License

Spdx

txtaiApache-2.0

Upstash–

Language

Primary

txtaiPython

Upstash–

Market

Availability

txtai–

UpstashAvailable worldwide · Popular in US

Content

Faq

txtai6 items

Upstash7 items

Capabilities

Feature-by-feature on the axes that matter for vector databases. “-” means undocumented, not absent.

Capability comparison for Vector Databases
Capability	txtai	Upstash
Deployment
Deployment	Embedded	Managed
Serverless / consumption pricing	-	✓
Index
ANN index (HNSW / IVF / DiskANN / ScaNN / flat)	HNSW, IVF, IVFSparse, milvus-lite, turbovec, zvec	HNSW
Distance metrics (cosine / dot / Euclidean)	cosine	cosine
Query
Metadata filtering	Pre-filter	Pre-filter
Hybrid search (dense + sparse fusion)	✓	✓
Built-in BM25 / lexical	✓	✓
Storage
Quantization	Scalar	-
On-disk vs in-memory	Disk-backed	persistent
Scale
Multi-tenancy (namespaces / collections / tenants)	✓	✓
Horizontal scale	Sharded / distributed	Sharded / distributed
Consistency
Consistency	Tunable	Strong
Licensing
Licence class	Permissive OSS	Proprietary
Classification
Purpose-built vs feature-of-parent	Dedicated DBMS	Dedicated DBMS

Deployment

txtaiEmbedded

UpstashManaged

Serverless / consumption pricing

txtai-

Upstash✓

Index

ANN index (HNSW / IVF / DiskANN / ScaNN / flat)

txtaiHNSW, IVF, IVFSparse, milvus-lite, turbovec, zvec

UpstashHNSW

Distance metrics (cosine / dot / Euclidean)

txtaicosine

Upstashcosine

Query

Metadata filtering

txtaiPre-filter

UpstashPre-filter

Hybrid search (dense + sparse fusion)

txtai✓

Upstash✓

Built-in BM25 / lexical

txtai✓

Upstash✓

Storage

Quantization

txtaiScalar

Upstash-

On-disk vs in-memory

txtaiDisk-backed

Upstashpersistent

Scale

Multi-tenancy (namespaces / collections / tenants)

txtai✓

Upstash✓

Horizontal scale

txtaiSharded / distributed

UpstashSharded / distributed

Consistency

txtaiTunable

UpstashStrong

Licensing

Licence class

txtaiPermissive OSS

UpstashProprietary

Classification

Purpose-built vs feature-of-parent

txtaiDedicated DBMS

UpstashDedicated DBMS

What each one is

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

txtai

txtai is an open-source Python framework for building semantic search applications, LLM-powered agents, retrieval augmented generation systems, and language model workflows with support for multiple vector backends and integration with various LLMs.

Independently observed

Upstash

Leader

A cloud platform offering serverless Redis, vector databases, message queues, and workflow orchestration designed for developers building serverless applications, with usage-based and fixed-rate pricing options.

Independently observed

Pricing

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

txtai

Open sourceFree tier

as of 2026-08-21verify ↗

Upstash

Leader

from $5/moHybridFree tier

Free tier (30 MB), Essentials from $5/month, Pro from $200/month

FreeFree
- No replication
- Single database
- Limited throughput
Essentials$5/month (250 MB) to $216/month (12 GB)
- Predefined database sizes (250 MB to 12 GB)
- Bandwidth and throughput limits per tier
- Optional high availability
- Flex tier with reduced throughput
Pro$200/month minimum + $0.014/hour usage-based billing
- Unlimited memory
- Dedicated VPC infrastructure
- Multiple databases per subscription
- Active-Active multi-region writes
- Auto-tiering
- +1 more

as of 2026-10-06verify ↗

Platform & deployment

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

Platform and deployment support comparison
Supports	txtai	Upstash
WebPlatforms	✓	✓
CLIPlatforms	✓	✓
Cloud / SaaSDeployment	✗	✓
Self-hostedDeployment	✓	✗

Platforms

Web

txtai✓

Upstash✓

CLI

txtai✓

Upstash✓

Deployment

Cloud / SaaS

txtai✗

Upstash✓

Self-hosted

txtai✓

Upstash✗

Integrations

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

txtai

12 total

llama.cpp
LiteLLM
Hugging Face
OpenAI
Claude
AWS Bedrock
smolagents
OpenCode
DuckDB
Milvus
LiteRT
Model Context Protocol

Independently observed

Upstash

Leader

13 total

Cloudflare Workers
Auth0
MongoDB
MySQL
PostgreSQL
Debezium
JDBC
FluentBit
Drizzle
Vercel AI SDK
Redis protocol clients
Vercel
Aiven

Independently observed

Still deciding?

txtai or Upstash: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

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