Options reference

You can use aider --help to see all the available options, or review them below.

LLM keys

Aider has special support for providing OpenAI and Anthropic API keys via command line switches and yaml config file. All other LLM providers must have their keys and settings specified in environment variables. This can be done in your shell, or by using a .env file.

Usage summary

usage: aider [-h] [--openai-api-key] [--anthropic-api-key] [--model]
             [--opus] [--sonnet] [--4] [--4o] [--4-turbo]
             [--35turbo] [--models] [--openai-api-base]
             [--openai-api-type] [--openai-api-version]
             [--openai-api-deployment-id] [--openai-organization-id]
             [--model-settings-file] [--model-metadata-file]
             [--verify-ssl | --no-verify-ssl] [--edit-format]
             [--weak-model]
             [--show-model-warnings | --no-show-model-warnings]
             [--map-tokens] [--max-chat-history-tokens] [--env-file]
             [--input-history-file] [--chat-history-file]
             [--restore-chat-history | --no-restore-chat-history]
             [--llm-history-file] [--dark-mode] [--light-mode]
             [--pretty | --no-pretty] [--stream | --no-stream]
             [--user-input-color] [--tool-output-color]
             [--tool-error-color] [--assistant-output-color]
             [--code-theme] [--show-diffs] [--git | --no-git]
             [--gitignore | --no-gitignore] [--aiderignore]
             [--auto-commits | --no-auto-commits]
             [--dirty-commits | --no-dirty-commits]
             [--attribute-author | --no-attribute-author]
             [--attribute-committer | --no-attribute-committer]
             [--attribute-commit-message | --no-attribute-commit-message]
             [--dry-run | --no-dry-run] [--commit] [--lint]
             [--lint-cmd] [--auto-lint | --no-auto-lint]
             [--test-cmd] [--auto-test | --no-auto-test] [--test]
             [--vim] [--voice-language] [--version]
             [--just-check-update]
             [--check-update | --no-check-update] [--apply] [--yes]
             [-v] [--show-repo-map] [--show-prompts] [--exit]
             [--message] [--message-file] [--encoding] [-c] [--gui]

options:

--help

show this help message and exit
Aliases:

  • -h
  • --help

Main:

--openai-api-key OPENAI_API_KEY

Specify the OpenAI API key
Environment variable: OPENAI_API_KEY

--anthropic-api-key ANTHROPIC_API_KEY

Specify the Anthropic API key
Environment variable: ANTHROPIC_API_KEY

--model MODEL

Specify the model to use for the main chat
Environment variable: AIDER_MODEL

--opus

Use claude-3-opus-20240229 model for the main chat
Environment variable: AIDER_OPUS

--sonnet

Use claude-3-5-sonnet-20240620 model for the main chat
Environment variable: AIDER_SONNET

--4

Use gpt-4-0613 model for the main chat
Environment variable: AIDER_4
Aliases:

  • --4
  • -4

--4o

Use gpt-4o model for the main chat
Environment variable: AIDER_4O

--4-turbo

Use gpt-4-1106-preview model for the main chat
Environment variable: AIDER_4_TURBO

--35turbo

Use gpt-3.5-turbo model for the main chat
Environment variable: AIDER_35TURBO
Aliases:

  • --35turbo
  • --35-turbo
  • --3
  • -3

Model Settings:

--models MODEL

List known models which match the (partial) MODEL name
Environment variable: AIDER_MODELS

--openai-api-base OPENAI_API_BASE

Specify the api base url
Environment variable: OPENAI_API_BASE

--openai-api-type OPENAI_API_TYPE

Specify the api_type
Environment variable: OPENAI_API_TYPE

--openai-api-version OPENAI_API_VERSION

Specify the api_version
Environment variable: OPENAI_API_VERSION

--openai-api-deployment-id OPENAI_API_DEPLOYMENT_ID

Specify the deployment_id
Environment variable: OPENAI_API_DEPLOYMENT_ID

--openai-organization-id OPENAI_ORGANIZATION_ID

Specify the OpenAI organization ID
Environment variable: OPENAI_ORGANIZATION_ID

--model-settings-file MODEL_SETTINGS_FILE

Specify a file with aider model settings for unknown models
Default: .aider.model.settings.yml
Environment variable: AIDER_MODEL_SETTINGS_FILE

--model-metadata-file MODEL_METADATA_FILE

Specify a file with context window and costs for unknown models
Default: .aider.model.metadata.json
Environment variable: AIDER_MODEL_METADATA_FILE

--verify-ssl

Verify the SSL cert when connecting to models (default: True)
Default: True
Environment variable: AIDER_VERIFY_SSL
Aliases:

  • --verify-ssl
  • --no-verify-ssl

--edit-format EDIT_FORMAT

Specify what edit format the LLM should use (default depends on model)
Environment variable: AIDER_EDIT_FORMAT

--weak-model WEAK_MODEL

Specify the model to use for commit messages and chat history summarization (default depends on –model)
Environment variable: AIDER_WEAK_MODEL

--show-model-warnings

Only work with models that have meta-data available (default: True)
Default: True
Environment variable: AIDER_SHOW_MODEL_WARNINGS
Aliases:

  • --show-model-warnings
  • --no-show-model-warnings

--map-tokens VALUE

Max number of tokens to use for repo map, use 0 to disable (default: 1024)
Default: 1024
Environment variable: AIDER_MAP_TOKENS

--max-chat-history-tokens VALUE

Maximum number of tokens to use for chat history. If not specified, uses the model’s max_chat_history_tokens.
Environment variable: AIDER_MAX_CHAT_HISTORY_TOKENS

--env-file ENV_FILE

Specify the .env file to load (default: .env in git root)
Default: .env
Environment variable: AIDER_ENV_FILE

History Files:

--input-history-file INPUT_HISTORY_FILE

Specify the chat input history file (default: .aider.input.history)
Default: .aider.input.history
Environment variable: AIDER_INPUT_HISTORY_FILE

--chat-history-file CHAT_HISTORY_FILE

Specify the chat history file (default: .aider.chat.history.md)
Default: .aider.chat.history.md
Environment variable: AIDER_CHAT_HISTORY_FILE

--restore-chat-history

Restore the previous chat history messages (default: False)
Default: False
Environment variable: AIDER_RESTORE_CHAT_HISTORY
Aliases:

  • --restore-chat-history
  • --no-restore-chat-history

--llm-history-file LLM_HISTORY_FILE

Log the conversation with the LLM to this file (for example, .aider.llm.history)
Environment variable: AIDER_LLM_HISTORY_FILE

Output Settings:

--dark-mode

Use colors suitable for a dark terminal background (default: False)
Default: False
Environment variable: AIDER_DARK_MODE

--light-mode

Use colors suitable for a light terminal background (default: False)
Default: False
Environment variable: AIDER_LIGHT_MODE

--pretty

Enable/disable pretty, colorized output (default: True)
Default: True
Environment variable: AIDER_PRETTY
Aliases:

  • --pretty
  • --no-pretty

--stream

Enable/disable streaming responses (default: True)
Default: True
Environment variable: AIDER_STREAM
Aliases:

  • --stream
  • --no-stream

--user-input-color VALUE

Set the color for user input (default: #00cc00)
Default: #00cc00
Environment variable: AIDER_USER_INPUT_COLOR

--tool-output-color VALUE

Set the color for tool output (default: None)
Environment variable: AIDER_TOOL_OUTPUT_COLOR

--tool-error-color VALUE

Set the color for tool error messages (default: red)
Default: #FF2222
Environment variable: AIDER_TOOL_ERROR_COLOR

--assistant-output-color VALUE

Set the color for assistant output (default: #0088ff)
Default: #0088ff
Environment variable: AIDER_ASSISTANT_OUTPUT_COLOR

--code-theme VALUE

Set the markdown code theme (default: default, other options include monokai, solarized-dark, solarized-light)
Default: default
Environment variable: AIDER_CODE_THEME

--show-diffs

Show diffs when committing changes (default: False)
Default: False
Environment variable: AIDER_SHOW_DIFFS

Git Settings:

--git

Enable/disable looking for a git repo (default: True)
Default: True
Environment variable: AIDER_GIT
Aliases:

  • --git
  • --no-git

--gitignore

Enable/disable adding .aider* to .gitignore (default: True)
Default: True
Environment variable: AIDER_GITIGNORE
Aliases:

  • --gitignore
  • --no-gitignore

--aiderignore AIDERIGNORE

Specify the aider ignore file (default: .aiderignore in git root)
Default: .aiderignore
Environment variable: AIDER_AIDERIGNORE

--auto-commits

Enable/disable auto commit of LLM changes (default: True)
Default: True
Environment variable: AIDER_AUTO_COMMITS
Aliases:

  • --auto-commits
  • --no-auto-commits

--dirty-commits

Enable/disable commits when repo is found dirty (default: True)
Default: True
Environment variable: AIDER_DIRTY_COMMITS
Aliases:

  • --dirty-commits
  • --no-dirty-commits

--attribute-author

Attribute aider code changes in the git author name (default: True)
Default: True
Environment variable: AIDER_ATTRIBUTE_AUTHOR
Aliases:

  • --attribute-author
  • --no-attribute-author

--attribute-committer

Attribute aider commits in the git committer name (default: True)
Default: True
Environment variable: AIDER_ATTRIBUTE_COMMITTER
Aliases:

  • --attribute-committer
  • --no-attribute-committer

--attribute-commit-message

Prefix commit messages with ‘aider: ‘ (default: False)
Default: False
Environment variable: AIDER_ATTRIBUTE_COMMIT_MESSAGE
Aliases:

  • --attribute-commit-message
  • --no-attribute-commit-message

--dry-run

Perform a dry run without modifying files (default: False)
Default: False
Environment variable: AIDER_DRY_RUN
Aliases:

  • --dry-run
  • --no-dry-run

Fixing and committing:

--commit

Commit all pending changes with a suitable commit message, then exit
Default: False
Environment variable: AIDER_COMMIT

--lint

Lint and fix provided files, or dirty files if none provided
Default: False
Environment variable: AIDER_LINT

--lint-cmd

Specify lint commands to run for different languages, eg: “python: flake8 –select=…” (can be used multiple times)
Default: []
Environment variable: AIDER_LINT_CMD

--auto-lint

Enable/disable automatic linting after changes (default: True)
Default: True
Environment variable: AIDER_AUTO_LINT
Aliases:

  • --auto-lint
  • --no-auto-lint

--test-cmd VALUE

Specify command to run tests
Default: []
Environment variable: AIDER_TEST_CMD

--auto-test

Enable/disable automatic testing after changes (default: False)
Default: False
Environment variable: AIDER_AUTO_TEST
Aliases:

  • --auto-test
  • --no-auto-test

--test

Run tests and fix problems found
Default: False
Environment variable: AIDER_TEST

Other Settings:

--vim

Use VI editing mode in the terminal (default: False)
Default: False
Environment variable: AIDER_VIM

--voice-language VOICE_LANGUAGE

Specify the language for voice using ISO 639-1 code (default: auto)
Default: en
Environment variable: AIDER_VOICE_LANGUAGE

--version

Show the version number and exit

--just-check-update

Check for updates and return status in the exit code
Default: False
Environment variable: AIDER_JUST_CHECK_UPDATE

--check-update

Check for new aider versions on launch
Default: True
Environment variable: AIDER_CHECK_UPDATE
Aliases:

  • --check-update
  • --no-check-update

--apply FILE

Apply the changes from the given file instead of running the chat (debug)
Environment variable: AIDER_APPLY

--yes

Always say yes to every confirmation
Environment variable: AIDER_YES

--verbose

Enable verbose output
Default: False
Environment variable: AIDER_VERBOSE
Aliases:

  • -v
  • --verbose

--show-repo-map

Print the repo map and exit (debug)
Default: False
Environment variable: AIDER_SHOW_REPO_MAP

--show-prompts

Print the system prompts and exit (debug)
Default: False
Environment variable: AIDER_SHOW_PROMPTS

--exit

Do all startup activities then exit before accepting user input (debug)
Default: False
Environment variable: AIDER_EXIT

--message COMMAND

Specify a single message to send the LLM, process reply then exit (disables chat mode)
Environment variable: AIDER_MESSAGE
Aliases:

  • --message COMMAND
  • --msg COMMAND
  • -m COMMAND

--message-file MESSAGE_FILE

Specify a file containing the message to send the LLM, process reply, then exit (disables chat mode)
Environment variable: AIDER_MESSAGE_FILE
Aliases:

  • --message-file MESSAGE_FILE
  • -f MESSAGE_FILE

--encoding VALUE

Specify the encoding for input and output (default: utf-8)
Default: utf-8
Environment variable: AIDER_ENCODING

--config CONFIG_FILE

Specify the config file (default: search for .aider.conf.yml in git root, cwd or home directory)
Aliases:

  • -c CONFIG_FILE
  • --config CONFIG_FILE

--gui

Run aider in your browser
Default: False
Environment variable: AIDER_GUI
Aliases:

  • --gui
  • --browser