qwen

Qwen: Qwen3 235B A22B Thinking 2507

by qwen No longer free

Last seen as free: Mar 6, 2026

OpenRouter
Tools Reasoning Long Context

Availability

Available 17 of 17 tracked days. Daily snapshots show whether this model was accessible as a free model on OpenRouter.

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Qwen: Qwen3 235B A22B Thinking 25070

About

Qwen3-235B-A22B-Thinking-2507 is a high-performance, open-weight Mixture-of-Experts (MoE) language model optimized for complex reasoning tasks. It activates 22B of its 235B parameters per forward pass and natively supports up to 262,144 tokens of context. This "thinking-only" variant enhances structured logical reasoning, mathematics, science, and long-form generation, showing strong benchmark performance across AIME, SuperGPQA, LiveCodeBench, and MMLU-Redux. It enforces a special reasoning mode (</think>) and is designed for high-token outputs (up to 81,920 tokens) in challenging domains. The model is instruction-tuned and excels at step-by-step reasoning, tool use, agentic workflows, and multilingual tasks. This release represents the most capable open-source variant in the Qwen3-235B series, surpassing many closed models in structured reasoning use cases.

Specifications

Context Length 131K
Max Output Tokens -
Modality text->text
Input text
Output text
Supported Parameters frequency_penalty, include_reasoning, logit_bias, max_tokens, min_p, presence_penalty, reasoning, repetition_penalty, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools, top_k, top_p
Content Moderation No

Error Rate

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Frequently Asked Questions

Is Qwen: Qwen3 235B A22B Thinking 2507 free to use?

Yes, Qwen: Qwen3 235B A22B Thinking 2507 is completely free to use through OpenRouter. You can access it via the Free LLM Router API at no cost.

What is the context window for Qwen: Qwen3 235B A22B Thinking 2507?

Qwen: Qwen3 235B A22B Thinking 2507 supports a context window of 131K tokens (131,072 tokens).

Does Qwen: Qwen3 235B A22B Thinking 2507 support function calling (tools)?

Yes, Qwen: Qwen3 235B A22B Thinking 2507 supports function calling / tool use, enabling it to interact with external APIs and services.

Does Qwen: Qwen3 235B A22B Thinking 2507 support reasoning?

Yes, Qwen: Qwen3 235B A22B Thinking 2507 supports reasoning capabilities, allowing it to show its step-by-step thought process.