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GPT-4.1 nano vs Qwen3.5-Flash

Detailed pricing comparison and cost analysis.

Updated September 2026

Cost Simulator

GPT-4.1 nano Cost
$0.18
Qwen3.5-Flash Cost
$0.18
Same cost at this usage
FeatureGPT-4.1 nanoQwen3.5-Flash
ProviderOpenAIAlibaba
Input Price (1M)$0.10$0.10
Output Price (1M)$0.40$0.40
Context Window1,000,0001,000,000

Verdict

GPT-4.1 nano costs $0.10 per 1M input tokens and $0.40 per 1M output tokens. Qwen3.5-Flash costs $0.10 per 1M input tokens and $0.40 per 1M output tokens. GPT-4.1 nano and Qwen3.5-Flash have identical input token pricing. For output tokens, GPT-4.1 nano is the more affordable option at $0.40/1M vs $0.40.

On context window, GPT-4.1 nano supports 1,000,000 tokens — meaning it can fit more conversation history, documents, or code in a single request. This matters for RAG pipelines, long document analysis, and agentic workflows where context builds up over many turns.

When to choose GPT-4.1 nano

  • ✓ You are already integrated with OpenAI

When to choose Qwen3.5-Flash

  • ✓ You are already integrated with Alibaba

Use the calculator above to simulate your specific workload and find the exact break-even point. For most applications, the cheapest model is the one that minimises your total monthly bill given your input-to-output token ratio.

Frequently Asked Questions

Is GPT-4.1 nano cheaper than Qwen3.5-Flash?

GPT-4.1 nano and Qwen3.5-Flash have identical input token pricing at $0.10/1M tokens.

What is the context window of GPT-4.1 nano vs Qwen3.5-Flash?

GPT-4.1 nano has a 1,000,000-token context window. Qwen3.5-Flash has a 1,000,000-token context window. GPT-4.1 nano supports the larger context, suitable for longer documents and agentic workflows.

Which model is better: GPT-4.1 nano or Qwen3.5-Flash?

The best choice depends on your use case. For cost efficiency on input tokens, GPT-4.1 nano is the cheaper option. For maximum context length, GPT-4.1 nano supports 1,000,000 tokens. Use the comparison table above to find the right fit for your workload.