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add fast mode toggle (#13212)

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- add a local Fast mode setting in codex-core (similar to how model id
is currently stored on disk locally)
- send `service_tier=priority` on requests when Fast is enabled
- add `/fast` in the TUI and persist it locally
- feature flag
This commit is contained in:
pash-openai
2026-03-02 20:29:33 -08:00
committed by GitHub
parent 56cc2c71f4
commit 2f5b01abd6
69 changed files with 929 additions and 127 deletions
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42
codex-rs/core/tests/suite/model_switching.rs
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@@ -4,6 +4,7 @@ use codex_core::config::types::Personality;
use codex_core::features::Feature;
use codex_core::models_manager::manager::RefreshStrategy;
use codex_protocol::config_types::ReasoningSummary;
use codex_protocol::config_types::ServiceTier;
use codex_protocol::openai_models::ConfigShellToolType;
use codex_protocol::openai_models::InputModality;
use codex_protocol::openai_models::ModelInfo;
@@ -59,6 +60,7 @@ async fn model_change_appends_model_instructions_developer_message() -> Result<(
model: test.session_configured.model.clone(),
effort: test.config.model_reasoning_effort,
summary: None,
service_tier: None,
collaboration_mode: None,
personality: None,
})
@@ -74,6 +76,7 @@ async fn model_change_appends_model_instructions_developer_message() -> Result<(
model: Some(next_model.to_string()),
effort: None,
summary: None,
service_tier: None,
collaboration_mode: None,
personality: None,
})
@@ -92,6 +95,7 @@ async fn model_change_appends_model_instructions_developer_message() -> Result<(
model: next_model.to_string(),
effort: test.config.model_reasoning_effort,
summary: None,
service_tier: None,
collaboration_mode: None,
personality: None,
})
@@ -147,6 +151,7 @@ async fn model_and_personality_change_only_appends_model_instructions() -> Resul
model: test.session_configured.model.clone(),
effort: test.config.model_reasoning_effort,
summary: None,
service_tier: None,
collaboration_mode: None,
personality: None,
})
@@ -162,6 +167,7 @@ async fn model_and_personality_change_only_appends_model_instructions() -> Resul
model: Some(next_model.to_string()),
effort: None,
summary: None,
service_tier: None,
collaboration_mode: None,
personality: Some(Personality::Pragmatic),
})
@@ -180,6 +186,7 @@ async fn model_and_personality_change_only_appends_model_instructions() -> Resul
model: next_model.to_string(),
effort: test.config.model_reasoning_effort,
summary: None,
service_tier: None,
collaboration_mode: None,
personality: None,
})
@@ -207,6 +214,36 @@ async fn model_and_personality_change_only_appends_model_instructions() -> Resul
Ok(())
}
#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
async fn service_tier_change_is_applied_on_next_http_turn() -> Result<()> {
skip_if_no_network!(Ok(()));
let server = start_mock_server().await;
let resp_mock = mount_sse_sequence(
&server,
vec![sse_completed("resp-1"), sse_completed("resp-2")],
)
.await;
let test = test_codex().build(&server).await?;
test.submit_turn_with_service_tier("fast turn", Some(ServiceTier::Fast))
.await?;
test.submit_turn_with_service_tier("standard turn", None)
.await?;
let requests = resp_mock.requests();
assert_eq!(requests.len(), 2, "expected two model requests");
let first_body = requests[0].body_json();
let second_body = requests[1].body_json();
assert_eq!(first_body["service_tier"].as_str(), Some("priority"));
assert_eq!(second_body.get("service_tier"), None);
Ok(())
}
#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
async fn model_change_from_image_to_text_strips_prior_image_content() -> Result<()> {
skip_if_no_network!(Ok(()));
@@ -296,6 +333,7 @@ async fn model_change_from_image_to_text_strips_prior_image_content() -> Result<
model: image_model_slug.to_string(),
effort: test.config.model_reasoning_effort,
summary: None,
service_tier: None,
collaboration_mode: None,
personality: None,
})
@@ -315,6 +353,7 @@ async fn model_change_from_image_to_text_strips_prior_image_content() -> Result<
model: text_model_slug.to_string(),
effort: test.config.model_reasoning_effort,
summary: None,
service_tier: None,
collaboration_mode: None,
personality: None,
})
@@ -474,6 +513,7 @@ async fn model_switch_to_smaller_model_updates_token_context_window() -> Result<
model: large_model_slug.to_string(),
effort: test.config.model_reasoning_effort,
summary: None,
service_tier: None,
collaboration_mode: None,
personality: None,
})
@@ -511,6 +551,7 @@ async fn model_switch_to_smaller_model_updates_token_context_window() -> Result<
model: Some(smaller_model_slug.to_string()),
effort: None,
summary: None,
service_tier: None,
collaboration_mode: None,
personality: None,
})
@@ -529,6 +570,7 @@ async fn model_switch_to_smaller_model_updates_token_context_window() -> Result<
model: smaller_model_slug.to_string(),
effort: test.config.model_reasoning_effort,
summary: None,
service_tier: None,
collaboration_mode: None,
personality: None,
})