Model Comparison

Qwen3 30B A3B vs Step-3.5-Flash

Step-3.5-Flash significantly outperforms across most benchmarks. Qwen3 30B A3B is 1.2x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Qwen3 30B A3B outperforms in 0 benchmarks, while Step-3.5-Flash is better at 1 benchmark (AIME 2025).

Step-3.5-Flash significantly outperforms across most benchmarks.

Tue Apr 14 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Qwen3 30B A3B costs less

For input processing, Qwen3 30B A3B ($0.10/1M tokens) costs the same as Step-3.5-Flash ($0.10/1M tokens).

For output processing, Qwen3 30B A3B ($0.30/1M tokens) is 1.3x cheaper than Step-3.5-Flash ($0.40/1M tokens).

In conclusion, Step-3.5-Flash is more expensive than Qwen3 30B A3B.*

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

Lowest available price from all providers
Tue Apr 14 2026 • llm-stats.com
Alibaba Cloud / Qwen Team
Qwen3 30B A3B
Input tokens$0.10
Output tokens$0.30
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

165.5B diff

Step-3.5-Flash has 165.5B more parameters than Qwen3 30B A3B, making it 542.6% larger.

Alibaba Cloud / Qwen Team
Qwen3 30B A3B
30.5Bparameters
StepFun
Step-3.5-Flash
196.0Bparameters
30.5B
Qwen3 30B A3B
196.0B
Step-3.5-Flash

Context Window

Maximum input and output token capacity

Qwen3 30B A3B accepts 128,000 input tokens compared to Step-3.5-Flash's 65,536 tokens. Qwen3 30B A3B can generate longer responses up to 128,000 tokens, while Step-3.5-Flash is limited to 8,192 tokens.

Alibaba Cloud / Qwen Team
Qwen3 30B A3B
Input128,000 tokens
Output128,000 tokens
StepFun
Step-3.5-Flash
Input65,536 tokens
Output8,192 tokens
Tue Apr 14 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 30B A3B

Apache 2.0

Open weights

Step-3.5-Flash

Apache 2.0

Open weights

Release Timeline

When each model was launched

Qwen3 30B A3B was released on 2025-04-29, while Step-3.5-Flash was released on 2026-02-02.

Step-3.5-Flash is 9 months newer than Qwen3 30B A3B.

Qwen3 30B A3B

Apr 29, 2025

11 months ago

Step-3.5-Flash

Feb 2, 2026

2 months ago

9mo 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 30B A3B is available from DeepInfra, Novita, Fireworks. Step-3.5-Flash is available from StepFun.

Qwen3 30B A3B

deepinfra logo
Deepinfra
Input Price:Input: $0.10/1MOutput Price:Output: $0.30/1M
novita logo
Novita
Input Price:Input: $0.10/1MOutput Price:Output: $0.44/1M
fireworks logo
Fireworks
Input Price:Input: $0.89/1MOutput Price:Output: $0.89/1M

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 30B A3B

View details

Alibaba Cloud / Qwen Team

Larger context window (128,000 tokens)
Less expensive output tokens
StepFun
Higher AIME 2025 score (97.3% vs 70.9%)

Detailed Comparison

AI Model Comparison Table
Feature
Alibaba Cloud / Qwen Team
Qwen3 30B A3B
StepFun
Step-3.5-Flash

FAQ

Common questions about Qwen3 30B A3B vs Step-3.5-Flash

Step-3.5-Flash significantly outperforms across most benchmarks. Qwen3 30B A3B is made by Alibaba Cloud / Qwen Team and Step-3.5-Flash is made by StepFun. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
Qwen3 30B A3B scores Arena Hard: 91.0%, AIME 2024: 80.4%, LiveBench: 74.3%, Multi-IF: 72.2%, AIME 2025: 70.9%. 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%.
Both models cost $0.10 per million input tokens.
Qwen3 30B A3B supports 128K 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 (128K vs 66K). See the full comparison above for benchmark-by-benchmark results.
Qwen3 30B A3B is developed by Alibaba Cloud / Qwen Team and Step-3.5-Flash is developed by StepFun.