--- title: "Changes to Get Training Options Route" method: GET path: "/api/v1/train/options" --- # Changes to Get Training Options Route `GET /api/v1/train/options` > Every recorded change to this operation, newest first. ## Timeline Changed in 29 of 63 revisions. - **2026-11-02** `5b5a8ae4b4a4`: 4 warning - **2026-11-02** `ac63eff4913f`: 23 warning, 24 info - **2026-10-31** `7b218d495d5c`: 1 breaking, 1 info - **2026-10-23** `0a17f8723be0`: 2 warning - **2026-10-23** `a99a7b2a5444`: 7 warning - **2026-10-21** `cac0bc23e466`: 2 warning - **2026-10-20** `d2a2f0337945`: 1 warning - **2026-10-19** `1b4f7d95e884`: 2 info - **2026-10-18** `db33cd63ac53`: 1 warning - **2026-10-17** `30d547077e65`: 4 warning, 3 info - **2026-10-15** `7f7a777f5bb4`: 3 warning, 4 info - **2026-10-14** `a9423fc3918b`: 1 breaking, 1 info - **2026-10-09** `d7af7940d2fc`: 1 info - **2026-10-07** `db059a2d3fb0`: 1 warning - **2026-10-06** `358e551babca`: 1 warning - **2026-10-02** `a0e690b1ef27`: 2 breaking, 5 warning, 3 info - **2026-10-02** `21079efbf349`: 2 breaking, 1 warning, 3 info - **2026-09-30** `9182aecc931a`: 2 warning - **2026-09-29** `8c9311580b72`: 5 warning - **2026-09-26** `9c094527854e`: 1 info - **2026-09-25** `ae26a0c95c43`: 1 breaking - **2026-09-23** `1f15ecf92088`: 3 warning, 1 info - **2026-09-22** `aea928d034f7`: 1 warning - **2026-09-14** `c3675ebed003`: 1 warning, 1 info - **2026-09-13** `6b2989fa1560`: 3 breaking, 7 warning - **2026-09-11** `8cb70690e5bc`: 1 info - **2026-09-10** `4fda12be7f4e`: 1 breaking - **2026-09-09** `f9c017dc9300`: 2 warning - **2026-09-06** `43d48506a5ad`: 1 warning ## Changes - **2026-11-02** `5b5a8ae4b4a4`: 4 warning - added the new `val_max_output_tokens_per_trajectory` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `val_max_output_tokens_per_turn` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `val_max_turns_per_trajectory` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `val_trajectory_timeout_seconds` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - **2026-11-02** `ac63eff4913f`: 23 warning, 24 info - added the new `batch_size` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `batch_timeout_seconds` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `density_aware_training` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `lr_min_ratio` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `max_concurrent_trajectories` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `max_output_tokens_per_trajectory` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `max_output_tokens_per_turn` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `max_staleness` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `min_trajectories_per_group` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `train_on_all_fail` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `train_on_all_pass` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `train_on_zero_advantage` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `trajectory_timeout_seconds` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `val_enabled` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `val_final_wait_timeout_seconds` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `val_interval_steps` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `val_max_concurrent_trajectories` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `val_num_tasks` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `val_reasoning_effort` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `val_temperature` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `val_top_k` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `val_top_p` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `val_trajectories_per_task` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - removed the `batch_collection_idle_timeout_seconds` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - removed the `evaluation_collection_timeout_seconds` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - removed the `evaluation_enabled` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - removed the `evaluation_frequency` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - removed the `evaluation_max_active_rollouts` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - removed the `evaluation_max_samples` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - removed the `evaluation_reasoning_effort` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - removed the `evaluation_samples_per_task` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - removed the `evaluation_temperature` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - removed the `evaluation_top_k` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - removed the `evaluation_top_p` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - removed the `execution_timeout_seconds` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - removed the `intelligent_density_training` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - removed the `max_active_rollouts` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - removed the `max_output_tokens_per_step` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - removed the `max_steps_off_policy` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - removed the `max_total_tokens_per_trajectory` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - …7 more - **2026-10-31** `7b218d495d5c`: 1 breaking, 1 info - removed the enum value `qwen/qwen3-235b-a22b` from the property `anyOf[subschema #1: BaseModelSlug]/` of the `query` request parameter `base_model_slug` - removed the `qwen/qwen3-235b-a22b` enum value from the `models/items/base_model_slug` response property for the response status `200` - **2026-10-23** `0a17f8723be0`: 2 warning - added the new `group_size` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `min_samples_per_group` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - **2026-10-23** `a99a7b2a5444`: 7 warning - added the new `evaluation_reasoning_effort` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `evaluation_temperature` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `evaluation_top_k` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `evaluation_top_p` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `temperature` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `top_k` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `top_p` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - **2026-10-21** `cac0bc23e466`: 2 warning - added the new `evaluation_frequency` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `max_steps_off_policy` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - **2026-10-20** `d2a2f0337945`: 1 warning - added the new `evaluation_enabled` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - **2026-10-19** `1b4f7d95e884`: 2 info - removed the `disable_thinking` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - removed the `n_parallel_agents` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - **2026-10-18** `db33cd63ac53`: 1 warning - added the new `max_active_rollouts` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - **2026-10-17** `30d547077e65`: 4 warning, 3 info - added the new `openai/gpt-6-astra` enum value to the `models/items/base_model_slug` response property for the response status `200` - added the new `openai/gpt-6-sol` enum value to the `models/items/base_model_slug` response property for the response status `200` - added the new `openai/gpt-6.1-sol` enum value to the `models/items/base_model_slug` response property for the response status `200` - added the new `reasoning_effort` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the enum value `openai/gpt-6-astra` to the property `anyOf[subschema #1: BaseModelSlug]/` of the `query` request parameter `base_model_slug` - added the enum value `openai/gpt-6-sol` to the property `anyOf[subschema #1: BaseModelSlug]/` of the `query` request parameter `base_model_slug` - added the enum value `openai/gpt-6.1-sol` to the property `anyOf[subschema #1: BaseModelSlug]/` of the `query` request parameter `base_model_slug` - **2026-10-15** `7f7a777f5bb4`: 3 warning, 4 info - added the new `train_on_error` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `train_on_timeout` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `z-ai/glm-5.3-flash` enum value to the `models/items/base_model_slug` response property for the response status `200` - added the enum value `z-ai/glm-5.3-flash` to the property `anyOf[subschema #1: BaseModelSlug]/` of the `query` request parameter `base_model_slug` - removed the `max_response_chars_per_tool_call` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - removed the `max_tool_calls_per_step` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - removed the `train_on_ungraded` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - **2026-10-14** `a9423fc3918b`: 1 breaking, 1 info - removed the enum value `Qwen/Qwen3.6-27B` from the property `anyOf[subschema #1: BaseModelSlug]/` of the `query` request parameter `base_model_slug` - removed the `Qwen/Qwen3.6-27B` enum value from the `models/items/base_model_slug` response property for the response status `200` - **2026-10-09** `d7af7940d2fc`: 1 info - removed the `retries` enum value from the `models/items/options/propertyNames/` response property for the response status `200` - **2026-10-07** `db059a2d3fb0`: 1 warning - added the new `retries` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - **2026-10-06** `358e551babca`: 1 warning - added the new `intelligent_density_training` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - **2026-10-02** `a0e690b1ef27`: 2 breaking, 5 warning, 3 info - response property `models/items/options/additionalProperties/default` list-of-types was widened by adding types `string` to media type `application/json` of response `200` - removed the required property `models/items/model_slug` from the response with the `200` status - deleted the `query` request parameter `model_slug` - added the new `algorithm` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `string` enum value to the `models/items/options/additionalProperties/type` response property for the response status `200` - added the new `train_on_truncation` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new `train_on_ungraded` enum value to the `models/items/options/propertyNames/` response property for the response status `200` - added the new optional `query` request parameter `base_model_slug` - added the optional property `models/items/options/additionalProperties/choices` to the response with the `200` status - added the required property `models/items/base_model_slug` to the response with the `200` status - **2026-10-02** `21079efbf349`: 2 breaking, 1 warning, 3 info - removed the required property `models/items/base_model_id` from the response with the `200` status - removed the required property `models/items/training_options` from the response with the `200` status - removed the optional property `models/items/default_options_only` from the response with the `200` status - added the new optional `query` request parameter `model_slug` - added the required property `models/items/model_slug` to the response with the `200` status - added the required property `models/items/options` to the response with the `200` status - **2026-09-30** `9182aecc931a`: 2 warning - added the new `moonshotai/kimi-k3` enum value to the `models/items/base_model_id` response property for the response status `200` - added the new `z-ai/glm-5.3` enum value to the `models/items/base_model_id` response property for the response status `200` - **2026-09-29** `8c9311580b72`: 5 warning - added the new `anthropic/claude-opus-5.5` enum value to the `models/items/base_model_id` response property for the response status `200` - added the new `anthropic/claude-sonnet-5.5` enum value to the `models/items/base_model_id` response property for the response status `200` - added the new `openai/gpt-5.6-luna` enum value to the `models/items/base_model_id` response property for the response status `200` - added the new `openai/gpt-5.6-sol` enum value to the `models/items/base_model_id` response property for the response status `200` - added the new `thinkingmachines/Inkling-Small` enum value to the `models/items/base_model_id` response property for the response status `200` - **2026-09-26** `9c094527854e`: 1 info - added 'propertyNames' constraint to the `models/items/training_options` response property for the status `200` - **2026-09-25** `ae26a0c95c43`: 1 breaking - removed 'propertyNames' constraint from the `models/items/training_options` response property for the status `200` - **2026-09-23** `1f15ecf92088`: 3 warning, 1 info - added the new `Qwen/Qwen3.6-27B` enum value to the `models/items/base_model_id` response property for the response status `200` - added the new `Qwen/Qwen3.8-27B` enum value to the `models/items/base_model_id` response property for the response status `200` - added the new `samples_per_instance` enum value to the `models/items/training_options/propertyNames/` response property for the response status `200` - removed the `samples_per_prompt` enum value from the `models/items/training_options/propertyNames/` response property for the response status `200` - **2026-09-22** `aea928d034f7`: 1 warning - added the new `samples_per_prompt` enum value to the `models/items/training_options/propertyNames/` response property for the response status `200` - **2026-09-14** `c3675ebed003`: 1 warning, 1 info - added the new `batch_collection_idle_timeout_seconds` enum value to the `models/items/training_options/propertyNames/` response property for the response status `200` - removed the `no_progress_timeout_seconds` enum value from the `models/items/training_options/propertyNames/` response property for the response status `200` - **2026-09-13** `6b2989fa1560`: 3 breaking, 7 warning - the `models/items/training_options/additionalProperties/default` response's property type changed from `integer` to `number` for status `200` - the `models/items/training_options/additionalProperties/max` response's property type changed from `integer` to `number` for status `200` - the `models/items/training_options/additionalProperties/min` response's property type changed from `integer` to `number` for status `200` - added the new `eval_final_collection_timeout_seconds` enum value to the `models/items/training_options/propertyNames/` response property for the response status `200` - added the new `execution_timeout_seconds` enum value to the `models/items/training_options/propertyNames/` response property for the response status `200` - added the new `learning_rate` enum value to the `models/items/training_options/propertyNames/` response property for the response status `200` - added the new `lr_hold_steps` enum value to the `models/items/training_options/propertyNames/` response property for the response status `200` - added the new `lr_warmup_steps` enum value to the `models/items/training_options/propertyNames/` response property for the response status `200` - added the new `min_lr_ratio` enum value to the `models/items/training_options/propertyNames/` response property for the response status `200` - added the new `no_progress_timeout_seconds` enum value to the `models/items/training_options/propertyNames/` response property for the response status `200` - **2026-09-11** `8cb70690e5bc`: 1 info - added the optional property `models/items/default_options_only` to the response with the `200` status - **2026-09-10** `4fda12be7f4e`: 1 breaking - removed the required property `default_base_model_id` from the response with the `200` status - **2026-09-09** `f9c017dc9300`: 2 warning - added the new `n_parallel_agents` enum value to the `models/items/training_options/propertyNames/` response property for the response status `200` - added the new `train_batch_size` enum value to the `models/items/training_options/propertyNames/` response property for the response status `200` - **2026-09-06** `43d48506a5ad`: 1 warning - added the new `num_steps` enum value to the `models/items/training_options/propertyNames/` response property for the response status `200` --- [Operation](https://skmtc.dev/trajectory/apis/trajectory-api/docs/api/v1/train/options/get.md) - [API](https://skmtc.dev/trajectory/apis/trajectory-api.md) - [Page](https://skmtc.dev/trajectory/apis/trajectory-api/changes/api/v1/train/options/get)