Source: https://seerepo.com/compare/conductor-oss/conductor/vs/opensearch-project/OpenSearch
Markdown source: https://seerepo.com/compare/conductor-oss/conductor/vs/opensearch-project/OpenSearch.md
Description: conductor and OpenSearch share 10 technologies: kafka-clients, s3, com.azure:azure-storage-blob, grpc-services, com.google.auth:google-auth-library-oauth2-http, jsoup, org.apache.pdfbox:pdfbox, log4j-slf4j-impl, org.apache.logging.log4j:log4j-api, and org.apache.logging.log4j:log4j-core. Both are written in Java.

# conductor vs OpenSearch

conductor and OpenSearch share 10 technologies: kafka-clients, s3, com.azure:azure-storage-blob, grpc-services, com.google.auth:google-auth-library-oauth2-http, jsoup, org.apache.pdfbox:pdfbox, log4j-slf4j-impl, org.apache.logging.log4j:log4j-api, and org.apache.logging.log4j:log4j-core. Both are written in Java.

- [conductor-oss/conductor](https://seerepo.com/r/conductor-oss/conductor): Conductor is an event driven agentic workflow engine providing durable and highly resilient execution engine for applications and AI Agents
- [opensearch-project/OpenSearch](https://seerepo.com/r/opensearch-project/OpenSearch): 🔎 Open source distributed and RESTful search engine.

## What they share and what sets them apart

- In common: kafka-clients, s3, com.azure:azure-storage-blob, grpc-services, com.google.auth:google-auth-library-oauth2-http, jsoup, org.apache.pdfbox:pdfbox, log4j-slf4j-impl, org.apache.logging.log4j:log4j-api, org.apache.logging.log4j:log4j-core
- Only in conductor: org.springframework.boot:spring-boot-starter-web, aws-java-sdk-sqs, jedis, mysql:mysql-connector-java, org.elasticsearch.client:elasticsearch-rest-client, org.mongodb:mongodb-driver-sync, org.springframework.boot:spring-boot-starter-jdbc, PostgreSQL, redisson, sqlite-jdbc, Redis, DataStax, Flyway, Postgres, com.github.ben-manes.caffeine:caffeine, org.apache.commons:commons-pool2, com.zaxxer:HikariCP, RabbitMQ, MySQL, org.springframework.data:spring-data-redis, SQLite, MongoDB, Elasticsearch, Kafka, AWS S3, Google, Google Cloud Storage, tomcat-embed-core, truffle-runtime, org.graalvm.polyglot:polyglot, React, React Router, Vite, react-router-dom, mkdocs-material, sts, org.springframework.security:spring-security-core, spring-ai-client-chat, tika-core, com.vladsch.flexmark:flexmark-all, com.github.jknack:handlebars, Spring, com.networknt:json-schema-validator, logback-classic, micrometer-registry-prometheus, org.apache.logging.log4j:log4j-jul, org.springframework.boot:spring-boot-starter-actuator, spring-boot-starter-log4j2, org.slf4j:slf4j-api, io.micrometer:micrometer-core, io.micrometer:micrometer-registry-otlp, @mui/system, classnames, MUI, reaflow, monaco-editor, React Hook Form, react-hotkeys-hook, jsonforms, @dnd-kit/core, react-data-table-component, recharts, @use-gesture/react, react-highlight, react-datepicker, react-number-format, react-player, TanStack, @phosphor-icons/react, @mui/icons-material, react-markdown, remark-gfm, prismjs, dom-to-image, highlight.js, @hookform/resolvers, yup, Ajv, ajv-errors, ajv-formats, cron-validate, @material-ui/styles, material-ui, @monaco-editor/react, Formik, D3, react-resize-detector, @material-ui/icons, prop-types
- Only in OpenSearch: JAX-RS, apache-client, arrow-c-data, arrow-memory-netty-buffer-patch, avro, aws-crt-client, aws-json-protocol, lucene-memory, org.apache.arrow:flight-core, datafusion, Apache, object_store, arrow, software.amazon.awssdk:sdk-core, org.apache.hadoop:hadoop-client-api, org.apache.calcite.avatica:avatica-core, datafusion-datasource, software.amazon.awssdk:kms, org.apache.hadoop:hadoop-hdfs, org.ehcache:ehcache, foyer, JetBrains, servlet-api, Tokio, joou-java-6, google-oauth-client, msal4j, nimbus-jose-jwt, oauth2-oidc-sdk, software.amazon.awssdk:auth, software.amazon.awssdk:sts, com.azure:azure-identity, compiler, jdom2, mail, org.apache.james:apache-mime4j-dom, pdfbox-io, poi, poi-ooxml, poi-ooxml-lite, poi-scratchpad, tika-parsers, parquet, org.apache.tika:tika-core, json-schema-validator, commons-logging, io.opentelemetry:opentelemetry-sdk-common, log4j-1.2-api, slf4j-api, OpenTelemetry, log, 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

| | conductor | OpenSearch |
|---|---|---|
| Size | 569,400 lines written, 2,324 code files | 3,021,895 lines written, 8,159 code files |
| Who writes it | 2% of its commits signed by AI. With Claude Code and Cursor | 0% of its commits signed by AI. With Claude Code, Cursor, GitHub Copilot, and CodeRabbit |
| Activity | Last push November 6, 2026, 4,763 commits, 32,443 stars | Last push November 9, 2026, 57,216 commits, 13,983 stars |
| Tests | 710 test files. 34.5% of its code files have a test that imports them | 5,508 test files. 65.6% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, conductor or OpenSearch?

OpenSearch, with 3,021,895 lines written; conductor has 569,400.

The proof: [opensearch-project/OpenSearch's code at commit 2923a00](https://github.com/opensearch-project/OpenSearch/tree/2923a00aa3758b357462dc85dc85ebe3e834e37d)

### Which has more GitHub stars, conductor or OpenSearch?

conductor, with 32,443 stars; OpenSearch has 13,983.

The proof: [conductor-oss/conductor on GitHub](https://github.com/conductor-oss/conductor)

### Which has more tests, conductor or OpenSearch?

OpenSearch, with 5,508 test files; conductor has 710.

The proof: [opensearch-project/OpenSearch's code at commit 2923a00](https://github.com/opensearch-project/OpenSearch/tree/2923a00aa3758b357462dc85dc85ebe3e834e37d)

### Which was updated more recently, conductor or OpenSearch?

OpenSearch: its last push was on November 9, 2026, and conductor's on November 6, 2026.

The proof: [opensearch-project/OpenSearch's commits on GitHub](https://github.com/opensearch-project/OpenSearch/commits)

### Which has more commits signed by AI, conductor or OpenSearch?

conductor: an AI signed 2% of its commits, with Claude Code and Cursor.

The proof: [the commits each tool signed in conductor-oss/conductor](https://seerepo.com/r/conductor-oss/conductor/ai)

## Sources

- conductor-oss/conductor: Read on November 7, 2026, at commit b65a5c9 (https://github.com/conductor-oss/conductor/tree/b65a5c9f1c5b125ea19034cc420a35b997214c8f)
- opensearch-project/OpenSearch: Read on November 9, 2026, at commit 2923a00 (https://github.com/opensearch-project/OpenSearch/tree/2923a00aa3758b357462dc85dc85ebe3e834e37d)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.