Qwen3 235B (Reasoning)

High-speed, high-cost reasoning with a wide context

Qwen3 235B (Reasoning)

Qwen3 235B (Reasoning) offers competitive speed and a substantial context window, but its intelligence scores are average and its overall pricing is on the higher side compared to similar open-weight models.

Large Language ModelReasoning FocusHigh SpeedOpen License33k ContextText-to-Text

The Qwen3 235B A22B (Reasoning) model, developed by Alibaba, positions itself as a powerful contender in the large language model space, particularly for tasks requiring extensive context and rapid processing. With a substantial 33,000-token context window, it is well-suited for complex applications such as detailed document analysis, long-form content generation, and intricate coding tasks where retaining conversational history or large data inputs is critical. This model supports text-to-text generation, making it a versatile tool for a wide array of natural language processing applications.

While Qwen3 235B (Reasoning) demonstrates impressive speed, clocking in at 63 tokens per second on average, it presents a mixed bag when it comes to intelligence and cost-efficiency. Our Artificial Analysis Intelligence Index places it at 42, which is on par with the average for comparable models but doesn't set it apart as a top-tier performer in raw intelligence. Furthermore, its verbosity, generating 85 million tokens during our intelligence evaluation compared to an average of 22 million, suggests that while it can produce extensive output, this may come with increased processing and cost implications.

From a pricing perspective, Qwen3 235B (Reasoning) is notably more expensive than many of its open-weight counterparts. With an input token price of $0.70 per million and an output token price of $8.40 per million, it ranks among the higher-cost options. This elevated pricing, especially for output tokens, means that applications requiring high volumes of generated text will need careful cost management. However, the availability of various API providers, such as Together.ai (FP8) and Fireworks, offers significant opportunities for cost optimization, as these providers deliver the model at substantially lower price points than Alibaba Cloud's direct offering.

The model's open license is a significant advantage, fostering broader adoption and integration into diverse ecosystems. This openness, combined with its robust context window and above-average speed, makes Qwen3 235B (Reasoning) an attractive option for developers and enterprises looking for a powerful, flexible model, provided they carefully manage its inherent verbosity and leverage competitive API pricing to mitigate costs. Its performance characteristics suggest it's best utilized in scenarios where speed and context are paramount, and where the value derived from its outputs justifies the investment.

Scoreboard

Intelligence

42 (27 / 51 / 51)

Scores average on the Artificial Analysis Intelligence Index, indicating solid but not leading performance. It generated 85M tokens during evaluation, suggesting a verbose output style.
Output speed

63 tokens/s

Faster than average, providing efficient token generation for demanding applications. Top providers like Fireworks achieve up to 99 t/s.
Input price

$0.70 /M tokens

Somewhat expensive compared to the average of $0.57/M tokens. Provider choice significantly impacts this cost.
Output price

$8.40 /M tokens

Significantly expensive, ranking among the highest at $8.40/M tokens, compared to an average of $2.10/M tokens.
Verbosity signal

85M tokens

Quite verbose, generating significantly more tokens than the average 22M during intelligence evaluations. This can impact overall cost.
Provider latency

0.40s TTFT

Excellent time to first token (TTFT) with Together.ai (FP8) leading at 0.40s, ensuring quick initial responses. Fireworks also performs well at 0.84s.

Technical specifications

Spec Details
Model Family Qwen3
Variant 235B A22B (Reasoning)
Owner Alibaba
License Open
Context Window 33,000 tokens
Input Type Text
Output Type Text
Intelligence Index 42 (Rank #27/51)
Average Output Speed 63 tokens/s
Average Input Price $0.70 / 1M tokens
Average Output Price $8.40 / 1M tokens
Evaluation Verbosity 85M tokens
Primary Use Case Reasoning, long-context tasks

What stands out beyond the scoreboard

Where this model wins
  • Exceptional Context Handling: A 33,000-token context window makes it ideal for complex, multi-turn conversations, extensive document analysis, or large codebases.
  • High Output Speed: With an average of 63 tokens/s and up to 99 tokens/s from top providers, it delivers fast results for high-throughput applications.
  • Low Latency Options: Providers like Together.ai (FP8) offer remarkably low time-to-first-token (TTFT) at 0.40s, crucial for real-time interactive experiences.
  • Open License Flexibility: Its open license encourages broad adoption and integration, fostering innovation across various platforms and applications.
  • Strong Reasoning Capabilities: Designed with a 'Reasoning' focus, it's well-suited for tasks requiring logical inference and structured problem-solving.
Where costs sneak up
  • High Output Token Price: At $8.40 per million output tokens, it's significantly more expensive than many alternatives, making high-volume generation costly.
  • Overall Price Sensitivity: The blended price can be high if not carefully managed, especially when using less competitive providers like Alibaba Cloud directly.
  • Verbosity Impact: Its tendency for verbose outputs (85M tokens during evaluation) means you might pay for more tokens than strictly necessary for a given task.
  • Intelligence-to-Cost Ratio: While its intelligence is average, the higher price point means the cost-per-unit of intelligence might be less favorable compared to more efficient models.
  • Provider Price Discrepancy: The vast difference in pricing between providers (e.g., Together.ai vs. Alibaba Cloud) means choosing the wrong provider can drastically inflate costs.

Provider pick

Selecting the right API provider for Qwen3 235B (Reasoning) is paramount, as performance and pricing vary dramatically. Our benchmarks highlight significant differences in output speed, latency, and token costs across Fireworks, Together.ai (FP8), and Alibaba Cloud.

For optimal performance and cost-efficiency, it's crucial to align your specific application needs with the strengths of each provider. Whether your priority is the absolute lowest latency, maximum output speed, or the most competitive blended price, there's a provider that stands out.

Priority Pick Why Tradeoff to accept
Overall Value Together.ai (FP8) Offers the best blended price ($0.30/M tokens) and lowest latency (0.40s TTFT). Output speed (45 t/s) is lower than Fireworks.
Highest Speed Fireworks Delivers the fastest output speed (99 t/s) and competitive pricing ($0.39/M tokens). Latency (0.84s TTFT) is higher than Together.ai (FP8).
Lowest Latency Together.ai (FP8) Achieves the lowest time-to-first-token (0.40s), ideal for interactive applications. Output speed is not the absolute fastest.
Lowest Input Price Together.ai (FP8) Most cost-effective for input tokens at $0.20/M, beneficial for prompt-heavy workflows. Output token price is slightly higher than its input price advantage.
Lowest Output Price Together.ai (FP8) Offers the most economical output tokens at $0.60/M, critical for verbose generation. May require balancing with other performance metrics.
Baseline Reference Alibaba Cloud Direct access to the model from its owner. Significantly higher prices and latency compared to optimized third-party providers.

Note: FP8 refers to the use of FP8 quantization by Together.ai, which can offer performance and cost benefits but may have minor impacts on precision for certain tasks.

Real workloads cost table

Understanding the real-world cost implications of Qwen3 235B (Reasoning) requires looking beyond raw token prices and considering typical usage scenarios. The model's high output token cost and verbosity mean that even seemingly small tasks can accumulate significant expenses if not managed efficiently.

Below are several common AI application scenarios, detailing estimated input/output token counts and the corresponding costs when leveraging the most cost-effective provider, Together.ai (FP8), which offers $0.20/M input and $0.60/M output tokens.

Scenario Input Output What it represents Estimated cost
Scenario Input (tokens) Output (tokens) What it represents Estimated Cost (Together.ai FP8)
Long Document Summarization 25,000 1,500 Summarizing a 50-page report into a concise overview. $0.0059
Complex Code Generation 5,000 2,000 Generating a complex function or script based on detailed requirements. $0.0022
Advanced Chatbot Interaction 1,000 500 A single, detailed turn in a customer support or technical assistance chatbot. $0.0005
Multi-turn Creative Writing 8,000 3,000 Collaborating on a story or marketing copy over several exchanges. $0.0034
Data Extraction & Structuring 15,000 1,000 Extracting specific entities and structuring data from unstructured text. $0.0036
Research Paper Analysis 30,000 2,500 Analyzing key arguments and findings from a lengthy academic paper. $0.0075

These examples highlight that while individual interactions might seem inexpensive, the cumulative cost for high-volume applications or those requiring extensive output can quickly add up. Strategic prompt engineering to minimize output tokens and careful provider selection are crucial for managing expenses with Qwen3 235B (Reasoning).

How to control cost (a practical playbook)

Optimizing costs for Qwen3 235B (Reasoning) is essential given its higher price points, especially for output tokens. A proactive approach to managing usage and provider selection can yield significant savings without compromising performance.

Here are key strategies to implement for a cost-effective deployment of this powerful model:

Prioritize Provider Selection

The choice of API provider is the single most impactful decision for cost management with Qwen3 235B. Providers like Together.ai (FP8) and Fireworks offer dramatically lower prices than Alibaba Cloud's direct offering.

  • Benchmark Providers: Always compare current pricing and performance metrics across all available providers.
  • Leverage FP8 Quantization: If available (e.g., Together.ai FP8), utilize quantized versions for significant cost and speed benefits, ensuring the precision impact is acceptable for your use case.
  • Negotiate Volume Discounts: For large-scale deployments, engage directly with providers to explore custom pricing tiers.
Optimize Prompt Engineering

Given Qwen3 235B's verbosity and high output token cost, crafting efficient prompts is critical to minimize unnecessary token generation.

  • Be Explicit with Output Requirements: Clearly specify desired output length, format, and content to prevent the model from generating extraneous text.
  • Use Few-Shot Examples: Provide concise examples that guide the model to produce only the necessary information, reducing exploratory or verbose responses.
  • Iterate and Refine: Continuously test and refine prompts to achieve the desired output with the fewest possible tokens.
Implement Output Filtering & Truncation

Even with optimized prompts, models can sometimes be verbose. Post-processing outputs can help manage costs and ensure relevance.

  • Truncate Excess Output: If a maximum output length is acceptable, programmatically truncate responses to avoid paying for tokens beyond your needs.
  • Filter Irrelevant Content: Implement logic to identify and discard any boilerplate or irrelevant text generated by the model.
  • Summarize Model Output: For certain applications, consider using a smaller, cheaper model to summarize the Qwen3 235B output if brevity is paramount.
Strategic Context Window Management

While the 33k context window is a strength, using it judiciously can prevent unnecessary input token costs.

  • Summarize Past Interactions: For long-running conversations, summarize previous turns to keep the context window lean without losing critical information.
  • Retrieve & Rank: Instead of feeding entire documents, use retrieval-augmented generation (RAG) to fetch only the most relevant snippets for the model.
  • Dynamic Context Adjustment: Implement logic to dynamically adjust the context length based on the complexity of the current query.

FAQ

What is Qwen3 235B A22B (Reasoning)?

Qwen3 235B A22B (Reasoning) is a large language model developed by Alibaba, specifically designed with a focus on reasoning capabilities. It features a substantial 33,000-token context window and is known for its above-average output speed, making it suitable for complex analytical and generative tasks.

How does its intelligence compare to other models?

On the Artificial Analysis Intelligence Index, Qwen3 235B (Reasoning) scores 42, which is on par with the average for comparable models. This indicates solid performance in general intelligence tasks, though it doesn't stand out as a top-tier performer in raw intelligence when compared to the absolute best models in its class.

Is Qwen3 235B (Reasoning) expensive to use?

Yes, its overall pricing is considered expensive, particularly for output tokens, which can cost up to $8.40 per million. However, costs can be significantly reduced by choosing optimized third-party API providers like Together.ai (FP8) or Fireworks, which offer much more competitive rates.

What is its context window size?

Qwen3 235B (Reasoning) boasts a large context window of 33,000 tokens. This allows it to process and retain a significant amount of information, making it highly effective for applications requiring deep understanding of long documents, extensive conversations, or large codebases.

Which API provider offers the best performance?

For raw output speed, Fireworks leads with 99 tokens/s. For the lowest latency (TTFT) and best blended price, Together.ai (FP8) is the top choice. Alibaba Cloud, while the model owner, generally offers higher prices and latency compared to these optimized third-party providers.

What are the main trade-offs when using this model?

The primary trade-offs are its higher cost, especially for output tokens, and its tendency for verbosity, which can further increase token usage and costs. While it offers good speed and a large context, users must actively manage prompt engineering and provider selection to mitigate these cost factors.

Is Qwen3 235B (Reasoning) suitable for real-time applications?

Yes, especially when paired with providers offering low latency. Together.ai (FP8) provides a time-to-first-token (TTFT) of 0.40s, which is excellent for interactive and real-time applications where quick initial responses are critical.


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