Sonar Reasoning Pro vs GLM 5.2

This comparison does not currently contain a protocol-matched coding benchmark for both Sonar Reasoning Pro and GLM 5.2, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.

Sonar Reasoning Pro is $2.00 and GLM 5.2 is $0.75 per million tokens, so GLM 5.2 is cheaper on this metric. Sonar Reasoning Pro is $8.00 and GLM 5.2 is $2.40 per million tokens, so GLM 5.2 is cheaper on this metric.

GLM 5.2 has the larger sourced context window. Sonar Reasoning Pro supports 128K and GLM 5.2 supports 1,049K.

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

GLM 5.2 is the only model in this pair currently marked as self-hostable. Sonar Reasoning Pro is not marked open weight; GLM 5.2 is open weight.

Sonar Reasoning Pro is not documented with image input; GLM 5.2 is not documented with image input. This reflects supported input modalities, not vision quality.

Neither has a larger sourced maximum output. Sonar Reasoning Pro is — and GLM 5.2 is —.

Sonar Reasoning Pro: reasoning. GLM 5.2: reasoning and tool calling. Feature support does not establish relative quality.

Sonar Reasoning Pro has 2 sourced provider routes; GLM 5.2 has 5, so GLM 5.2 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.