Model Comparison

Qwen3-Coder vs Step-3.5-Flash

Comparing Qwen3-Coder and Step-3.5-Flash across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Qwen3-Coder and Step-3.5-Flash don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Step-3.5-Flash costs less

For input processing, Qwen3-Coder ($0.18/1M tokens) is 1.8x more expensive than Step-3.5-Flash ($0.10/1M tokens).

For output processing, Qwen3-Coder ($0.18/1M tokens) is 2.2x cheaper than Step-3.5-Flash ($0.40/1M tokens).

In conclusion, Qwen3-Coder is more expensive than Step-3.5-Flash.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Fri Apr 17 2026 • llm-stats.com
Alibaba Cloud / Qwen Team
Qwen3-Coder
Input tokens$0.18
Output tokens$0.18
Best providerDeepinfra
StepFun
Step-3.5-Flash
Input tokens$0.10
Output tokens$0.40
Best providerStepFun
Notice missing or incorrect data?Start an Issue→

Model Size

Parameter count comparison

284.0B diff

Qwen3-Coder has 284.0B more parameters than Step-3.5-Flash, making it 144.9% larger.

Alibaba Cloud / Qwen Team
Qwen3-Coder
480.0Bparameters
StepFun
Step-3.5-Flash
196.0Bparameters
480.0B
Qwen3-Coder
196.0B
Step-3.5-Flash

Context Window

Maximum input and output token capacity

Qwen3-Coder accepts 256,000 input tokens compared to Step-3.5-Flash's 65,536 tokens. Qwen3-Coder can generate longer responses up to 256,000 tokens, while Step-3.5-Flash is limited to 8,192 tokens.

Alibaba Cloud / Qwen Team
Qwen3-Coder
Input256,000 tokens
Output256,000 tokens
StepFun
Step-3.5-Flash
Input65,536 tokens
Output8,192 tokens
Fri Apr 17 2026 • llm-stats.com

License

Usage and distribution terms

Both models are licensed under Apache 2.0.

Both models share the same licensing terms, providing consistent usage rights.

Qwen3-Coder

Apache 2.0

Open weights

Step-3.5-Flash

Apache 2.0

Open weights

Release Timeline

When each model was launched

Qwen3-Coder was released on 2025-01-01, while Step-3.5-Flash was released on 2026-02-02.

Step-3.5-Flash is 13 months newer than Qwen3-Coder.

Qwen3-Coder

Jan 1, 2025

1.3 years ago

Step-3.5-Flash

Feb 2, 2026

2 months ago

1.1yr newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

Qwen3-Coder is available from DeepInfra, Fireworks. Step-3.5-Flash is available from StepFun.

Qwen3-Coder

deepinfra logo
Deepinfra
Input Price:Input: $0.18/1MOutput Price:Output: $0.18/1M
fireworks logo
Fireworks
Input Price:Input: $0.25/1MOutput Price:Output: $0.25/1M

Step-3.5-Flash

stepfun logo
StepFun
Input Price:Input: $0.10/1MOutput Price:Output: $0.40/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Alibaba Cloud / Qwen Team

Qwen3-Coder

View details

Alibaba Cloud / Qwen Team

Larger context window (256,000 tokens)
Less expensive output tokens
StepFun
Less expensive input tokens

Detailed Comparison

AI Model Comparison Table
Feature
Alibaba Cloud / Qwen Team
Qwen3-Coder
StepFun
Step-3.5-Flash

FAQ

Common questions about Qwen3-Coder vs Step-3.5-Flash

Qwen3-Coder (Alibaba Cloud / Qwen Team) and Step-3.5-Flash (StepFun) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.
Step-3.5-Flash scores AIME 2025: 97.3%, Tau-bench: 88.2%, LiveCodeBench v6: 86.4%, IMO-AnswerBench: 85.4%, SWE-Bench Verified: 74.4%.
Step-3.5-Flash is 1.8x cheaper for input tokens. Qwen3-Coder costs $0.18/M input and $0.18/M output via deepinfra. Step-3.5-Flash costs $0.10/M input and $0.40/M output via stepfun.
Qwen3-Coder supports 256K tokens and Step-3.5-Flash supports 66K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (256K vs 66K), input pricing ($0.18 vs $0.10/M). See the full comparison above for benchmark-by-benchmark results.
Qwen3-Coder is developed by Alibaba Cloud / Qwen Team and Step-3.5-Flash is developed by StepFun.