Qwen3.5 397B A17B vs Sonar Reasoning Pro

This comparison does not currently contain a protocol-matched coding benchmark for both Qwen3.5 397B A17B and Sonar Reasoning Pro, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.

Qwen3.5 397B A17B is $0.45 and Sonar Reasoning Pro is $2.00 per million tokens, so Qwen3.5 397B A17B is cheaper on this metric. Qwen3.5 397B A17B is $3.00 and Sonar Reasoning Pro is $8.00 per million tokens, so Qwen3.5 397B A17B is cheaper on this metric.

Qwen3.5 397B A17B has the larger sourced context window. Qwen3.5 397B A17B supports 262K and Sonar Reasoning Pro supports 128K.

There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.

Qwen3.5 397B A17B is the only model in this pair currently marked as self-hostable. Qwen3.5 397B A17B is open weight; Sonar Reasoning Pro is not marked open weight.

Qwen3.5 397B A17B is documented with image input; Sonar Reasoning Pro is not documented with image input. This reflects supported input modalities, not vision quality.

Neither has a larger sourced maximum output. Qwen3.5 397B A17B is — and Sonar Reasoning Pro is —.

Qwen3.5 397B A17B: reasoning, tool calling, and image input. Sonar Reasoning Pro: reasoning. Feature support does not establish relative quality.

Qwen3.5 397B A17B has 4 sourced provider routes; Sonar Reasoning Pro has 2, so Qwen3.5 397B A17B has broader tracked availability.

There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.