GLM 5.1 vs GLM 5V Turbo

This comparison does not currently contain a protocol-matched coding benchmark for both GLM 5.1 and GLM 5V Turbo, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.

Only GLM 5.1 has a directly sourced input price: $1.05 per million tokens. Only GLM 5.1 has a directly sourced output price: $3.50 per million tokens.

GLM 5.1 has the larger sourced context window. GLM 5.1 supports 202,752 tokens and GLM 5V Turbo supports 200,000 tokens.

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

GLM 5.1 is documented as self-hostable; GLM 5V Turbo is documented as not self-hostable. GLM 5.1 is open weight; GLM 5V Turbo is not marked open weight.

GLM 5.1 is not documented with image input; GLM 5V Turbo is documented with image input. This reflects supported input modalities, not vision quality.

GLM 5V Turbo has a sourced maximum output of 131,072 tokens; GLM 5.1's maximum output is not reported. A larger limit cannot be determined.

GLM 5.1: reasoning and tool calling. GLM 5V Turbo: reasoning, tool calling, and image input. Feature support does not establish relative quality.

GLM 5.1 has 4 sourced provider routes; GLM 5V Turbo has 1, so GLM 5.1 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.