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Qwen3.5 Flash (02-23) vs Claude Sonnet 5

At a glance

Ultra-fast Qwen3.5 variant with 1M-token context at rock-bottom pricing.

1M ctx$0.07/$0.26 per M

Anthropic's fifth-generation Sonnet — near-Opus intelligence at Sonnet speed and price.

801M ctx$2.00/$10.00 per M#26/92
Agent Demos
All agent demos

No shared agent demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
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This model hasn't been benchmarked yet.

Reasoning
CI 72.7-84.7
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Capability
CapabilityECI80.1
Reasoning & Knowledge
Graduate Science90.5%Factual Recall25.0%
Math
Competition Math94.7%
Specs
1M
Context
66K
Max output
Feb 2026
Released
1M
Context
128K
Max output
Jun 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input97%$0.07/M tokens
Output97%$0.26/M tokens
Live pricing, shown before you run
Input$2.00/M tokens
Output$10.00/M tokens
Cache read$0.20/M tokens
Cache write$2.50/M tokens
Web search$0.01/search
Chat with Qwen3.5 Flash (02-23)Go to model
Chat with Claude Sonnet 5Go to model
Frequently Asked Questions: Qwen3.5 Flash (02-23) vs Claude Sonnet 5▼

Which is better, Qwen3.5 Flash (02-23) or Claude Sonnet 5?

▼

Both Qwen3.5 Flash (02-23) and Claude Sonnet 5 are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, Qwen3.5 Flash (02-23) or Claude Sonnet 5?

▼

Qwen3.5 Flash (02-23) has a lower blended cost. Qwen3.5 Flash (02-23): $0.07 input / $0.26 output. Claude Sonnet 5: $2.00 input / $10.00 output.

Which has a larger context window, Qwen3.5 Flash (02-23) or Claude Sonnet 5?

▼

Qwen3.5 Flash (02-23) has a larger context window: Qwen3.5 Flash (02-23) supports 1M tokens vs Claude Sonnet 5 at 1M tokens.

Do both Qwen3.5 Flash (02-23) and Claude Sonnet 5 support vision?

▼

Yes, both Qwen3.5 Flash (02-23) and Claude Sonnet 5 support vision/image input.

What are the key differences between Qwen3.5 Flash (02-23) and Claude Sonnet 5?

▼

Key differences: Qwen3.5 Flash (02-23) is significantly cheaper. Compare full specs on this page.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Qwen3.5 Flash (02-23) and Claude Sonnet 5 for free on idapt.app to see which performs better for your specific needs.

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