A reasoning-focused conversational model for complex reasoning and multi-step tasks
kimi-k2-thinking-turbo is the Turbo invocation model in the Kimi K2 Thinking series, suitable for text tasks that require sustained reasoning, breaking down multiple constraints, and incorporating tool feedback. It can be a candidate for solution design, troubleshooting, and multi-turn technical assistance. The trade-offs with standard Thinking should be evaluated by comparing actual time, task quality, and billing using the same materials and identical conversation history.
Choose an available protocol for this model. OpenAI SDK uses a Base URL ending in /v1; Anthropic SDK uses the root URL. See each guide for protocol-specific parameters, tools and response formats.
Specifications and API features
First, clarify this model's input and standard invocation method.
Invocation model
kimi-k2-thinking-turbo
Input and output
Text message input; assistant text output
Standard API
POST /v1/chat/completions; submit model and messages
The application passes relevant history and the current question in messages
Version characteristics
Turbo invocation model in the Thinking series; compare task efficiency based on results on this platform
Native model characteristics are for model selection; this platform's input limits, available parameters, and billing are subject to this model's API and pricing. Use stream for continuous output from Chat Completions; the client is responsible for preserving message history.
Core capabilities
Learn what kimi-k2-thinking-turbo can bring to your work.
Perform complex reasoning around constraints
When a problem includes multiple conditions, mutually constraining goals, or requires phased judgment, you can provide the model with known facts, assumptions, and acceptance requirements together. Its purpose is not merely to generate a single conclusion, but to help address complex problems and produce explanations, solutions, and items to validate that are easy to review and discuss further.
Organize multi-step instructions into tasks
Suitable for requests that need to analyze materials first, compare options next, and finally provide a deliverable. Prompts can clearly specify the order of steps, conditions that must not be overlooked, and the final output format, allowing complex reasoning to progress toward the same goal. When collaborating with tools, the application should handle actual execution and feed the execution results back into the conversation.
Evaluate the actual interaction experience in sustained tasks
Turbo is an independent invocation option. When comparing, keep the input, history, and tool responses fixed, and observe wait time, missed task details, and areas requiring manual revision; do not treat the name as a guarantee of a fixed speed multiplier or identical output.
Applicable Scenarios
Start with specific tasks to identify where the model can be effective.
Solution Design and Trade-offs
Provide project goals, resource constraints, dependencies, and candidate solutions, and ask the model to compare them using consistent criteria and deliver a recommended solution, reasons for the choice, and questions requiring confirmation. This is suitable for organizing scattered requirements into decision materials for discussion; when real budgets or critical business judgments are involved, the final decision should still be made using verified data.
Issue Diagnosis and Fix Planning
Put error messages, relevant code text, expected behavior, and attempted approaches into the message, and ask the model to distinguish possible causes, list the validation order, and suggest modifications. Deliverables can include a troubleshooting checklist, remediation ideas, and testing points; running code and confirming the effectiveness of fixes are handled by the actual development environment.
Preserve Supporting Materials for Results
Retain the versions of materials submitted to kimi-k2-thinking-turbo and the actual responses, distinguishing original facts, model suggestions, and actions already completed by the application. Before structured results enter the system, check required fields, value types, and business rules to avoid turning missing information directly into definitive records.
How to Choose This Model
Choose based on task complexity, input materials, and expected results.
How to Choose Between Thinking and Thinking Turbo
kimi-k2-thinking and kimi-k2-thinking-turbo are both public models designed for complex reasoning and multi-step tasks. When choosing Turbo, use your own representative tasks to compare answer completeness, instruction following, and actual response experience rather than inferring a fixed acceleration ratio from the name alone. Existing Turbo applications can retain this model and conduct regression testing around task quality.
Standard Messages Make Integration with Existing Applications Easier
Use /v1/chat/completions and explicitly set model=kimi-k2-thinking-turbo. Existing OpenAI-compatible applications can continue using their message and result handling; when integrating, configure the platform address, API Key, and exact model name.
Getting Started: Compare the Response Experience of Thinking Models in Multi-turn Tasks
Arrange the inputs first, then connect them to the corresponding application workflow.
Prepare Inputs
Select a set of solution design examples requiring three to five follow-up rounds, and fix the input and tool return for each round.
Organize Calls and Subsequent Workflow
Explicitly select kimi-k2-thinking-turbo in the Chat Completions request, and organize the background, materials, and output requirements for this request into messages. First use a task with a clearly defined scope to check the response, then put actual review or testing feedback into the next-round message.
Practical Task Example: Comparing the Response Experience of Thinking Models in Multi-turn Tasks
Design tasks directly from the following inputs and acceptance priorities.
Suggested Task
Please design a retrieval solution that meets these budget and latency constraints; first list the conditions to be confirmed, then adjust the design with supplementary materials and explain the changes.
Key Checks
Compare completion time, omissions, and the amount of manual editing using the same history as Thinking; the Turbo name does not replace actual latency and billing measurements on this platform.
Usage Boundaries
Before formal use, understand the output quality and scope of capabilities.
This model's positioning for complex reasoning does not mean it automatically executes tasks. After generating operation plans, code, or tool-call information, the corresponding execution environment, permissions, and result feedback are still required; without actual execution records, suggestions should not be treated as operations that have already been completed.
Do not directly treat image, file, or audio fields in shared requests as this model's native multimodal capabilities. When handling document analysis tasks, you can first provide the extracted text and necessary context; when visual or speech tasks are needed, choose a model that explicitly supports the corresponding inputs and outputs.
Reasoning content may be empty, and clients should determine the result based on the response body and completion status. More complex tasks should reserve sufficient output space; if finish_reason is length, check whether the response was truncated, then make a supplementary request rather than directly using an incomplete conclusion in subsequent workflows.
Frequently Asked Questions
Answers to common questions about using kimi-k2-thinking-turbo.
Is kimi-k2-thinking-turbo an alias for K3?
No. It is a publicly released Kimi K2 Thinking series model, launched alongside kimi-k2-thinking. Use the full ID kimi-k2-thinking-turbo when calling it; do not reuse K3 capacity specifications or reasoning control parameters simply because they belong to the same Kimi series.
Can reasoning_effort be used to adjust thinking intensity?
This model should not use K3's reasoning_effort, nor should it use the thinking switch from K2.6. A more practical approach is to clearly specify the task objective, constraints, and acceptance criteria, and leave sufficient room for the response; this prompt design is used to organize tasks and is not equivalent to native reasoning budget control.
How do I call kimi-k2-thinking-turbo with the standard API?
Submit model=kimi-k2-thinking-turbo and messages to /v1/chat/completions. Read normal results from choices[].message.content; use stream to obtain incremental results for streaming calls. Use this platform's API Key, and set the full base URL according to the SDK you use.
How should reasoning and main text in streaming responses be handled?
Streaming increments from Chat Completions may separately include content and reasoning_content. The interface can handle the main text and reasoning content separately, but must allow the reasoning field to be empty. Check finish_reason at the end; tool calls and length truncation should not be treated as ordinary complete responses.
How do I continue analysis from the previous turn?
Have the application save the message history, and include the user and assistant messages relevant to the current question in messages. Choose a solution-design example that requires three to five rounds of follow-up questions, and keep the input and tool returns fixed for each round. When materials or constraints change, update them with the next request.