chroma vs OpenSearch
chroma and OpenSearch share 7 technologies: s3, arrow, foyer, object_store, Tokio, parquet, and OpenTelemetry. chroma is written in Rust and OpenSearch in Java.
LinkedInWhat they share and what sets them apart
chroma-core
chroma
Search infrastructure for AI
Rust29.7kRead on November 8, 2026, at commit 1a3ac2cWhat is chroma built with?Only in chroma
- axum
- FastAPI
aws-sdk-s3
- pgx
- pq
- sqlx-postgres
- sqlx-sqlite
- sqlx
- Postgres
- SQLite
usearch
- tower
uvicorn
OpenAI- Rich
- Ratatui
- crossterm
- indicatif
- dialoguer
- utoipa-swagger-ui
- gorm.io/gorm
- pypika
- sea-query
- bcrypt
github.com/aws/aws-sdk-go-v2/credentials
- hf-hub
tokenizers
- onnxruntime
- rmcp
tree-sitter-md
validator
- Pydantic
- schemars
- jsonschema
- k8s-openapi
- opentelemetry-api
opentelemetry-exporter-otlp-proto-grpc
opentelemetry-instrumentation-fastapi
tracing
github.com/pingcap/log
- go.uber.org/zap
- tracing-opentelemetry
- github.com/rs/zerolog
- google-cloud-googleapis
- boto3
- go.opentelemetry.io/otel
- go.opentelemetry.io/otel/metric
- go.opentelemetry.io/contrib/instrumentation/github.com/aws/aws-sdk-go-v2/otelaws
- go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc
- go.opentelemetry.io/otel/exporters/otlp/otlptrace
- go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc
- go.opentelemetry.io/otel/sdk
- go.opentelemetry.io/otel/sdk/metric
- go.opentelemetry.io/otel/trace
kube
kubernetes
opentelemetry-otlp
psutil
- @xenova/transformers
cohere-ai
- ollama
- Ajv
- Hugging Face
- together-ai
In common
- arrow
foyer
- object_store
- Tokio
parquet
- OpenTelemetry
opensearch-project
OpenSearch
🔎 Open source distributed and RESTful search engine.
Java14kRead on November 9, 2026, at commit 2923a00What is OpenSearch built with?Only in OpenSearch
- JAX-RS
- apache-client
- arrow-c-data
- arrow-memory-netty-buffer-patch
- avro
- aws-crt-client
- aws-json-protocol
- kafka-clients
- lucene-memory
- org.apache.arrow:flight-core
datafusion
- Apache
- software.amazon.awssdk:sdk-core
- org.apache.hadoop:hadoop-client-api
- org.apache.calcite.avatica:avatica-core
- com.azure:azure-storage-blob
- software.amazon.awssdk:kms
- org.apache.hadoop:hadoop-hdfs
- org.ehcache:ehcache
- grpc-services
- JetBrains
- servlet-api
- joou-java-6
- com.google.auth:google-auth-library-oauth2-http
- google-oauth-client
- msal4j
- nimbus-jose-jwt
- oauth2-oidc-sdk
- software.amazon.awssdk:auth
- software.amazon.awssdk:sts
- com.azure:azure-identity
- compiler
- jdom2
- jsoup
- org.apache.james:apache-mime4j-dom
- pdfbox-io
- poi
- poi-ooxml
- poi-ooxml-lite
- poi-scratchpad
- tika-parsers
- org.apache.tika:tika-core
- org.apache.pdfbox:pdfbox
- json-schema-validator
- commons-logging
- io.opentelemetry:opentelemetry-sdk-common
- log4j-1.2-api
- log4j-slf4j-impl
- org.apache.logging.log4j:log4j-api
- slf4j-api
- log
- org.apache.logging.log4j:log4j-core
- software.amazon.awssdk:regions
- io.opentelemetry:opentelemetry-sdk
- software.amazon.awssdk:ec2
- io.opentelemetry:opentelemetry-exporter-logging
- io.opentelemetry:opentelemetry-exporter-otlp
- io.opentelemetry.semconv:opentelemetry-semconv
Side by side
chromaOpenSearch
SizeLines written by people and agents, without generated ones; code files, without tests.
chroma474,465 lines written886 code files
OpenSearch3,021,895 lines written8,159 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
chroma1.5% of its commits signed by AIWith Claude Code, Cursor, and Sweep
OpenSearch0% of its commits signed by AIWith Claude Code, Cursor, GitHub Copilot, and CodeRabbit
ActivityFrom GitHub and its history, on the day SeeRepo read it.
chromaLast push November 7, 20264,542 commits29,650 stars
OpenSearchLast push November 9, 202657,216 commits13,983 stars
TestsThe files that test the code, and the share of code files a test imports.
chroma345 test files31% of its code files have a test that imports them
OpenSearch5,508 test files65.6% of its code files have a test that imports them
Frequently asked questions
Which is bigger, chroma or OpenSearch?
OpenSearch, with 3,021,895 lines written; chroma has 474,465.
The proof: opensearch-project/OpenSearch's code at commit 2923a00
Which has more GitHub stars, chroma or OpenSearch?
chroma, with 29,650 stars; OpenSearch has 13,983.
The proof: chroma-core/chroma on GitHub
Which has more tests, chroma or OpenSearch?
OpenSearch, with 5,508 test files; chroma has 345.
The proof: opensearch-project/OpenSearch's code at commit 2923a00
Which was updated more recently, chroma or OpenSearch?
OpenSearch: its last push was on November 9, 2026, and chroma's on November 7, 2026.
The proof: opensearch-project/OpenSearch's commits on GitHub
Which has more commits signed by AI, chroma or OpenSearch?
chroma: an AI signed 1.5% of its commits, with Claude Code, Cursor, and Sweep.
The proof: the commits each tool signed in chroma-core/chroma
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