codex

Remove test-support feature from codex-core and replace it with explicit test toggles (#11405 )

## Why

`codex-core` was being built in multiple feature-resolved permutations
because test-only behavior was modeled as crate features. For a large
crate, those permutations increase compile cost and reduce cache reuse.

## Net Change

- Removed the `test-support` crate feature and related feature wiring so
`codex-core` no longer needs separate feature shapes for test consumers.
- Standardized cross-crate test-only access behind
`codex_core::test_support`.
- External test code now imports helpers from
`codex_core::test_support`.
- Underlying implementation hooks are kept internal (`pub(crate)`)
instead of broadly public.

## Outcome

- Fewer `codex-core` build permutations.
- Better incremental cache reuse across test targets.
- No intended production behavior change.

Michael Bolin · 2026-02-10 22:44:02 -08:00

476c1a7160

Prefer websocket transport when model opts in (#11386 )

Summary
- add a `prefer_websockets` field to `ModelInfo`, defaulting to `false`
in all fixtures and constructors
- wire the new flag into websocket selection so models that opt in
always use websocket transport even when the feature gate is off

Testing
- Not run (not requested)

pakrym-oai · 2026-02-10 18:50:48 -08:00

c68999ee6d

[Codex][CLI] Gate image inputs by model modalities (#10271 )

###### Summary

- Add input_modalities to model metadata so clients can determine
supported input types.
- Gate image paste/attach in TUI when the selected model does not
support images.
- Block submits that include images for unsupported models and show a
clear warning.
- Propagate modality metadata through app-server protocol/model-list
responses.
  - Update related tests/fixtures.

  ###### Rationale

  - Models support different input modalities.
- Clients need an explicit capability signal to prevent unsupported
requests.
- Backward-compatible defaults preserve existing behavior when modality
metadata is absent.

  ###### Scope

  - codex-rs/protocol, codex-rs/core, codex-rs/tui
  - codex-rs/app-server-protocol, codex-rs/app-server
  - Generated app-server types / schema fixtures

  ###### Trade-offs

- Default behavior assumes text + image when field is absent for
compatibility.
  - Server-side validation remains the source of truth.

  ###### Follow-up

- Non-TUI clients should consume input_modalities to disable unsupported
attachments.
- Model catalogs should explicitly set input_modalities for text-only
models.

  ###### Testing

  - cargo fmt --all
  - cargo test -p codex-tui
  - env -u GITHUB_APP_KEY cargo test -p codex-core --lib
  - just write-app-server-schema
- cargo run -p codex-cli --bin codex -- app-server generate-ts --out
app-server-types
  - test against local backend
  
<img width="695" height="199" alt="image"
src="https://github.com/user-attachments/assets/d22dd04f-5eba-4db9-a7c5-a2506f60ec44"
/>

---------

Co-authored-by: Josh McKinney <joshka@openai.com>

Colin Young · 2026-02-02 18:56:39 -08:00

7e07ec8f73

Require models refresh on cli version mismatch (#10414 )

Ahmed Ibrahim · 2026-02-02 18:55:25 -08:00

b8addcddb9

chore(personality) new schema with fallbacks (#10147 )

## Summary
Let's dial in this api contract in a bit more with more robust fallback
behavior when model_instructions_template is false.

Switches to a more explicit template / variables structure, with more
fallbacks.

## Testing
- [x] Adding unit tests
- [x] Tested locally

Dylan Hurd · 2026-01-30 00:10:12 -07:00

e3ab0bd973

feat(core) ModelInfo.model_instructions_template (#9597 )

## Summary
#9555 is the start of a rename, so I'm starting to standardize here.
Sets up `model_instructions` templating with a strongly-typed object for
injecting a personality block into the model instructions.

## Testing
- [x] Added tests
- [x] Ran locally

Dylan Hurd · 2026-01-21 18:11:18 -08:00

96a72828be

Add migration_markdown in model_info (#9219 )

Next step would be to clean Model Upgrade in model presets

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: aibrahim-oai <219906144+aibrahim-oai@users.noreply.github.com>

Ahmed Ibrahim · 2026-01-15 01:55:22 +00:00

a09711332a

Fix app-server write_models_cache to treat models with less priority number as higher priority. (#8844 )

Rank models with p0 higher than p1. This shouldn't result in any
behavioral changes. Just reordering.

Ahmed Ibrahim · 2026-01-07 11:22:13 -08:00

4c9b4b684f

Merge Modelfamily into modelinfo (#8763 )

- Merge ModelFamily into ModelInfo
- Remove logic for adding instructions to apply patch
- Add compaction limit and visible context window to `ModelInfo`

Ahmed Ibrahim · 2026-01-07 10:35:09 -08:00

9179c9deac

Remove reasoning format (#8484 )

This isn't very useful parameter. 

logic:
```
if model puts `**` in their reasoning, trim it and visualize the header.
if couldn't trim: don't render
if model doesn't support: don't render
```

We can simplify to:
```
if could trim, visualize header.
if not, don't render
```

Ahmed Ibrahim · 2025-12-23 16:01:46 -08:00

40de81e7af

remove minimal client version (#8447 )

This isn't needed value by client

Ahmed Ibrahim · 2025-12-22 12:52:24 -08:00

6b2ef216f1

Rename OpenAI models to models manager (#8346 )

# External (non-OpenAI) Pull Request Requirements

Before opening this Pull Request, please read the dedicated
"Contributing" markdown file or your PR may be closed:
https://github.com/openai/codex/blob/main/docs/contributing.md

If your PR conforms to our contribution guidelines, replace this text
with a detailed and high quality description of your changes.

Include a link to a bug report or enhancement request.

Ahmed Ibrahim · 2025-12-19 16:20:05 -08:00

f0dc6fd3c7

feat: model picker (#8209 )

# External (non-OpenAI) Pull Request Requirements

Before opening this Pull Request, please read the dedicated
"Contributing" markdown file or your PR may be closed:
https://github.com/openai/codex/blob/main/docs/contributing.md

If your PR conforms to our contribution guidelines, replace this text
with a detailed and high quality description of your changes.

Include a link to a bug report or enhancement request.

Ahmed Ibrahim · 2025-12-17 16:12:35 -08:00

774bd9e432

Update Model Info (#7853 )

Ahmed Ibrahim · 2025-12-11 14:06:07 -08:00

b7fa7ca8e9

make model optional in config (#7769 )

- Make Config.model optional and centralize default-selection logic in
ModelsManager, including a default_model helper (with
codex-auto-balanced when available) so sessions now carry an explicit
chosen model separate from the base config.
- Resolve `model` once in `core` and `tui` from config. Then store the
state of it on other structs.
- Move refreshing models to be before resolving the default model

Ahmed Ibrahim · 2025-12-10 11:19:00 -08:00

cb9a189857

15 Commits