Alternatives to GLM 5.1
These models are alternatives by measurable coding evidence: they share the current open/open-weight classificationand are closest to GLM 5.1's SWE-bench score. Similarity here does not mean identical capabilities, licence terms, or output quality.
The target model
SWE-bench
74.2%
Cheapest input
$1.40
Cheapest output
$4.40
Hosts
1
| Alternative | SWE-bench | Input $/MTok | Output $/MTok | Hosts | Context | Tradeoff |
|---|---|---|---|---|---|---|
| Kimi K2.5 | 73.8% | $0.50 | $2.80 | 7 | — | lower input price |
| Kimi K2.6 | 76.7% | $0.73 | $3.50 | 3 | 262k | lower input price |
| DeepSeek V4 Pro | 77.6% | $1.32 | $3.50 | 5 | — | lower input price |
How alternatives are selected
Alternatives must have a benchmark score and the same current open/closed classification as the target. They are sorted by score distance, then by price/performance. The table compares hosted API economics; it does not establish licence compatibility or self-hosting rights.
Check the model licence, provider Terms, context limits, tool support, and output quality before switching a production workload.