Qwen3.5-397B-A17B vs GPT-5.1 Codex Mini Comparison

Comparing Qwen3.5-397B-A17B and GPT-5.1 Codex Mini across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Qwen3.5-397B-A17B and GPT-5.1 Codex Mini 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

GPT-5.1 Codex Mini costs less

For input processing, Qwen3.5-397B-A17B ($0.60/1M tokens) is 2.4x more expensive than GPT-5.1 Codex Mini ($0.25/1M tokens).

For output processing, Qwen3.5-397B-A17B ($3.60/1M tokens) is 1.8x more expensive than GPT-5.1 Codex Mini ($2.00/1M tokens).

In conclusion, Qwen3.5-397B-A17B is more expensive than GPT-5.1 Codex Mini.*

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

Lowest available price from all providers

Tue Mar 17 2026 • llm-stats.com

Qwen3.5-397B-A17B

Input tokens$0.60

Output tokens$3.60

Best providerNovita

GPT-5.1 Codex Mini

Input tokens$0.25

Output tokens$2.00

Best providerOpenAI

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Context Window

Maximum input and output token capacity

GPT-5.1 Codex Mini accepts 400,000 input tokens compared to Qwen3.5-397B-A17B's 262,144 tokens. GPT-5.1 Codex Mini can generate longer responses up to 128,000 tokens, while Qwen3.5-397B-A17B is limited to 64,000 tokens.

Qwen3.5-397B-A17B

Input262,144 tokens

Output64,000 tokens

GPT-5.1 Codex Mini

Input400,000 tokens

Output128,000 tokens

Tue Mar 17 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Qwen3.5-397B-A17B and GPT-5.1 Codex Mini support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Qwen3.5-397B-A17B

Text

Images

Audio

Video

GPT-5.1 Codex Mini

Text

Images

Audio

Video

License

Usage and distribution terms

Qwen3.5-397B-A17B is licensed under Apache 2.0, while GPT-5.1 Codex Mini uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

Qwen3.5-397B-A17B

Apache 2.0

Open weights

GPT-5.1 Codex Mini

Proprietary

Closed source

Release Timeline

When each model was launched

Qwen3.5-397B-A17B was released on 2026-02-16, while GPT-5.1 Codex Mini was released on 2025-11-12.

Qwen3.5-397B-A17B is 3 months newer than GPT-5.1 Codex Mini.

Qwen3.5-397B-A17B

Feb 16, 2026

4 weeks ago

3mo newer

GPT-5.1 Codex Mini

Nov 12, 2025

4 months ago

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

Qwen3.5-397B-A17B is available from Novita. GPT-5.1 Codex Mini is available from OpenAI. The availability of providers can affect quality of the model and reliability.