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Overview Models Agents Tools Voice & Audio Production API reference
API Dashboard
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API Reference
Beta
Threads

Create thread and run

client.Beta.Threads.NewAndRun(ctx, body) (*Run, error)
POST/threads/runs

Create a thread and run it in one request.

ParametersExpand Collapse
body BetaThreadNewAndRunParams
AssistantID param.Field[string]

The ID of the assistant to use to execute this run.

Instructions param.Field[string]Optional

Override the default system message of the assistant. This is useful for modifying the behavior on a per-run basis.

MaxCompletionTokens param.Field[int64]Optional

The maximum number of completion tokens that may be used over the course of the run. The run will make a best effort to use only the number of completion tokens specified, across multiple turns of the run. If the run exceeds the number of completion tokens specified, the run will end with status incomplete. See incomplete_details for more info.

minimum256
MaxPromptTokens param.Field[int64]Optional

The maximum number of prompt tokens that may be used over the course of the run. The run will make a best effort to use only the number of prompt tokens specified, across multiple turns of the run. If the run exceeds the number of prompt tokens specified, the run will end with status incomplete. See incomplete_details for more info.

minimum256
Metadata param.Field[Metadata]Optional

Set of 16 key-value pairs that can be attached to an object. This can be useful for storing additional information about the object in a structured format, and querying for objects via API or the dashboard.

Keys are strings with a maximum length of 64 characters. Values are strings with a maximum length of 512 characters.

Model param.Field[ChatModel]Optional

The ID of the Model to be used to execute this run. If a value is provided here, it will override the model associated with the assistant. If not, the model associated with the assistant will be used.

ParallelToolCalls param.Field[bool]Optional

Whether to enable parallel function calling during tool use.

ResponseFormat param.Field[AssistantResponseFormatOptionUnion]Optional

Specifies the format that the model must output. Compatible with GPT-4o, GPT-4 Turbo, and all GPT-3.5 Turbo models since gpt-3.5-turbo-1106.

Setting to { "type": "json_schema", "json_schema": {...} } enables Structured Outputs which ensures the model will match your supplied JSON schema. Learn more in the Structured Outputs guide.

Setting to { "type": "json_object" } enables JSON mode, which ensures the message the model generates is valid JSON.

Important: when using JSON mode, you must also instruct the model to produce JSON yourself via a system or user message. Without this, the model may generate an unending stream of whitespace until the generation reaches the token limit, resulting in a long-running and seemingly “stuck” request. Also note that the message content may be partially cut off if finish_reason="length", which indicates the generation exceeded max_tokens or the conversation exceeded the max context length.

Temperature param.Field[float64]Optional

What sampling temperature to use, between 0 and 2. Higher values like 0.8 will make the output more random, while lower values like 0.2 will make it more focused and deterministic.

minimum0
maximum2
Thread param.Field[BetaThreadNewAndRunParamsThread]Optional

Options to create a new thread. If no thread is provided when running a request, an empty thread will be created.

ToolChoice param.Field[AssistantToolChoiceOptionUnion]Optional

Controls which (if any) tool is called by the model. none means the model will not call any tools and instead generates a message. auto is the default value and means the model can pick between generating a message or calling one or more tools. required means the model must call one or more tools before responding to the user. Specifying a particular tool like {"type": "file_search"} or {"type": "function", "function": {"name": "my_function"}} forces the model to call that tool.

ToolResources param.Field[BetaThreadNewAndRunParamsToolResources]Optional

A set of resources that are used by the assistant’s tools. The resources are specific to the type of tool. For example, the code_interpreter tool requires a list of file IDs, while the file_search tool requires a list of vector store IDs.

Tools param.Field[[]AssistantToolUnion]Optional

Override the tools the assistant can use for this run. This is useful for modifying the behavior on a per-run basis.

TopP param.Field[float64]Optional

An alternative to sampling with temperature, called nucleus sampling, where the model considers the results of the tokens with top_p probability mass. So 0.1 means only the tokens comprising the top 10% probability mass are considered.

We generally recommend altering this or temperature but not both.

minimum0
maximum1
TruncationStrategy param.Field[BetaThreadNewAndRunParamsTruncationStrategy]Optional

Controls for how a thread will be truncated prior to the run. Use this to control the initial context window of the run.

ReturnsExpand Collapse
type Run struct{…}

Represents an execution run on a thread.

ID string

The identifier, which can be referenced in API endpoints.

AssistantID string

The ID of the assistant used for execution of this run.

CancelledAt int64

The Unix timestamp (in seconds) for when the run was cancelled.

formatunixtime
CompletedAt int64

The Unix timestamp (in seconds) for when the run was completed.

formatunixtime
CreatedAt int64

The Unix timestamp (in seconds) for when the run was created.

formatunixtime
ExpiresAt int64

The Unix timestamp (in seconds) for when the run will expire.

formatunixtime
FailedAt int64

The Unix timestamp (in seconds) for when the run failed.

formatunixtime
IncompleteDetails RunIncompleteDetails

Details on why the run is incomplete. Will be null if the run is not incomplete.

Instructions string

The instructions that the assistant used for this run.

LastError RunLastError

The last error associated with this run. Will be null if there are no errors.

MaxCompletionTokens int64

The maximum number of completion tokens specified to have been used over the course of the run.

minimum256
MaxPromptTokens int64

The maximum number of prompt tokens specified to have been used over the course of the run.

minimum256
Metadata Metadata

Set of 16 key-value pairs that can be attached to an object. This can be useful for storing additional information about the object in a structured format, and querying for objects via API or the dashboard.

Keys are strings with a maximum length of 64 characters. Values are strings with a maximum length of 512 characters.

Model string

The model that the assistant used for this run.

Object ThreadRun

The object type, which is always thread.run.

ParallelToolCalls bool

Whether to enable parallel function calling during tool use.

RequiredAction RunRequiredAction

Details on the action required to continue the run. Will be null if no action is required.

ResponseFormat AssistantResponseFormatOptionUnion

Specifies the format that the model must output. Compatible with GPT-4o, GPT-4 Turbo, and all GPT-3.5 Turbo models since gpt-3.5-turbo-1106.

Setting to { "type": "json_schema", "json_schema": {...} } enables Structured Outputs which ensures the model will match your supplied JSON schema. Learn more in the Structured Outputs guide.

Setting to { "type": "json_object" } enables JSON mode, which ensures the message the model generates is valid JSON.

Important: when using JSON mode, you must also instruct the model to produce JSON yourself via a system or user message. Without this, the model may generate an unending stream of whitespace until the generation reaches the token limit, resulting in a long-running and seemingly “stuck” request. Also note that the message content may be partially cut off if finish_reason="length", which indicates the generation exceeded max_tokens or the conversation exceeded the max context length.

StartedAt int64

The Unix timestamp (in seconds) for when the run was started.

formatunixtime
Status RunStatus

The status of the run, which can be either queued, in_progress, requires_action, cancelling, cancelled, failed, completed, incomplete, or expired.

ThreadID string

The ID of the thread that was executed on as a part of this run.

ToolChoice AssistantToolChoiceOptionUnion

Controls which (if any) tool is called by the model. none means the model will not call any tools and instead generates a message. auto is the default value and means the model can pick between generating a message or calling one or more tools. required means the model must call one or more tools before responding to the user. Specifying a particular tool like {"type": "file_search"} or {"type": "function", "function": {"name": "my_function"}} forces the model to call that tool.

Tools []AssistantToolUnion

The list of tools that the assistant used for this run.

TruncationStrategy RunTruncationStrategy

Controls for how a thread will be truncated prior to the run. Use this to control the initial context window of the run.

Usage RunUsage

Usage statistics related to the run. This value will be null if the run is not in a terminal state (i.e. in_progress, queued, etc.).

Temperature float64Optional

The sampling temperature used for this run. If not set, defaults to 1.

TopP float64Optional

The nucleus sampling value used for this run. If not set, defaults to 1.

Create thread and run

package main

import (
  "context"
  "fmt"

  "github.com/openai/openai-go"
  "github.com/openai/openai-go/option"
)

func main() {
  client := openai.NewClient(
    option.WithAPIKey("My API Key"),
  )
  run, err := client.Beta.Threads.NewAndRun(context.TODO(), openai.BetaThreadNewAndRunParams{
    AssistantID: "assistant_id",
  })
  if err != nil {
    panic(err.Error())
  }
  fmt.Printf("%+v\n", run.ID)
}

{
  "id": "run_abc123",
  "object": "thread.run",
  "created_at": 1699076792,
  "assistant_id": "asst_abc123",
  "thread_id": "thread_abc123",
  "status": "queued",
  "started_at": null,
  "expires_at": 1699077392,
  "cancelled_at": null,
  "failed_at": null,
  "completed_at": null,
  "required_action": null,
  "last_error": null,
  "model": "gpt-4o",
  "instructions": "You are a helpful assistant.",
  "tools": [],
  "tool_resources": {},
  "metadata": {},
  "temperature": 1.0,
  "top_p": 1.0,
  "max_completion_tokens": null,
  "max_prompt_tokens": null,
  "truncation_strategy": {
    "type": "auto",
    "last_messages": null
  },
  "incomplete_details": null,
  "usage": null,
  "response_format": "auto",
  "tool_choice": "auto",
  "parallel_tool_calls": true
}
Returns Examples
{
  "id": "run_abc123",
  "object": "thread.run",
  "created_at": 1699076792,
  "assistant_id": "asst_abc123",
  "thread_id": "thread_abc123",
  "status": "queued",
  "started_at": null,
  "expires_at": 1699077392,
  "cancelled_at": null,
  "failed_at": null,
  "completed_at": null,
  "required_action": null,
  "last_error": null,
  "model": "gpt-4o",
  "instructions": "You are a helpful assistant.",
  "tools": [],
  "tool_resources": {},
  "metadata": {},
  "temperature": 1.0,
  "top_p": 1.0,
  "max_completion_tokens": null,
  "max_prompt_tokens": null,
  "truncation_strategy": {
    "type": "auto",
    "last_messages": null
  },
  "incomplete_details": null,
  "usage": null,
  "response_format": "auto",
  "tool_choice": "auto",
  "parallel_tool_calls": true
}