Data points: 61
Model compare
The readout for GLM-5.1 and Jamba 1.5 Large Instruct, before the detailed comparison sheet.
Weighted outcome: GLM-5.1. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GLM-5.1
GLM-5.1 has the higher weighted result; Model A / B score 60 to 40.
Evidence depth
61 data points
Includes 0 benchmark rows, 1 audit samples, and 7 provider examples.
Selection signal
Start with GLM-5.1
The charts below split 8 high-signal samples across speed, scores, and audit health.
Switch either side of this report to compare another model with the same LMSpeed data pipeline.
Select a different model to open a new comparison URL.
This report only uses LMSpeed data for GLM-5.1 and Jamba 1.5 Large Instruct: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GLM-5.1 | Jamba 1.5 Large Instruct |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 60.0 pts | 40.0 pts |
| Benchmark category leads | 0 categories | 0 categories |
| Operational advantages | Cheapest input price, Free providers, Provider coverage | Average speed, First-token latency |
| Context window | 204.8K tokens | No data |
| Max output | 128K tokens | No data |
| Modalities | Input Text Output Text | No data |
| Features |
The overall result weights benchmark capability categories at 80% and price, API speed/latency, and availability at 20%. Recent test volume does not affect the winner, and missing benchmark categories are excluded.
| Model compare | GLM-5.1 | Jamba 1.5 Large Instruct |
|---|---|---|
| Developer | Z.ai | No data |
| Released | Apr 2026 | No data |
| Parameters | No data | No data |
| Tokenizer | Other | No data |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | z-ai/glm-5.1 | No data |
| References | No data | No data |
This report only uses LMSpeed data for GLM-5.1 and Jamba 1.5 Large Instruct: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GLM-5.1
GLM-5.1 has these operational advantages: Cheapest input price, Free providers, Provider coverage.
Jamba 1.5 Large Instruct
Jamba 1.5 Large Instruct has these operational advantages: Average speed, First-token latency.
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.
Avg. score
GLM-5.1
54.4
Avg. score
Jamba 1.5 Large Instruct
-
GLM-5.1
GLM-5.1
GLM-5.1
GLM-5.1
GLM-5.1
No data
No data
GLM-5.1
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
No shared professional benchmark scores are available yet.
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GLM-5.1 | Jamba 1.5 Large Instruct |
|---|---|---|
Winner: GLM-5.1 | GLM-5.1 z-ai/glm-5.1 Audit score 78 70728088 | Jamba 1.5 Large Instruct ai21labs/jamba-1.5-large-instruct No audit yet |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | GLM-5.1 | Jamba 1.5 Large Instruct |
|---|---|---|
20 tests | GLM-5.1 speed / latency 82 tok/s / 9309ms input / output No data | Jamba 1.5 Large Instruct speed / latency 56 tok/s / 295ms input / output No data |
5 tests | GLM-5.1 z-ai/glm-5.1 speed / latency 148 tok/s / 5296ms input / output $0.017/M/$0.054/M | Jamba 1.5 Large Instruct ai21labs/jamba-1.5-large-instruct speed / latency N/A / N/A input / output $0.411/M |
5 tests | GLM-5.1 speed / latency 66 tok/s / 4538ms input / output No data | Jamba 1.5 Large Instruct speed / latency N/A / N/A input / output No data |
5 tests | GLM-5.1 speed / latency 22 tok/s / 9579ms input / output No data | Jamba 1.5 Large Instruct speed / latency N/A / N/A input / output No data |
5 tests | GLM-5.1 z-ai/glm-5.1 speed / latency 41 tok/s / 7764ms input / output $0.010/request | Jamba 1.5 Large Instruct ai21labs/jamba-1.5-large-instruct speed / latency N/A / N/A input / output $0.010/request |
GLM-5.1 glm-5.1 speed / latency No data input / output $0/M/$0/M | Jamba 1.5 Large Instruct jamba-1.5-large-instruct speed / latency No data input / output $0/M | |
GLM-5.1 glm-5.1 speed / latency No data input / output $0.050/request | Jamba 1.5 Large Instruct jamba-1.5-large-instruct speed / latency No data input / output $0.100/request |
Weighted outcome: GLM-5.1. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Text inputText outputTool callingStructured outputsJSON modeReasoning |
| None listed |
