GLM-5.3 vs Nova Pro
Comparing GLM-5.3 and Nova Pro across benchmarks, pricing, and capabilities.
Zhipu AI · Amazon · Updated for 2026
Which is better?
GLM-5.3 and Nova Pro trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.
On price, Nova Pro is roughly 1.5x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
GLM-5.3 also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.
Based on current benchmark, pricing, and model metadata for 2026.
Choose GLM-5.3
- you process long inputs — it offers a 1,000,000 token context window
- you want the most recent training data — it shipped Aug 2026
Choose Nova Pro
- cost matters — it's about 1.5x cheaper per token
At a glance
The differences that matter most.
Performance Benchmarks
Comparative analysis across standard metrics
GLM-5.3 and Nova Prodon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Arena Performance
Playground indexes and blind preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, GLM-5.3 ($1.40/1M tokens) is 1.7x more expensive than Nova Pro ($0.80/1M tokens).
For output processing, GLM-5.3 ($4.40/1M tokens) is 1.4x more expensive than Nova Pro ($3.20/1M tokens).
In conclusion, GLM-5.3 is more expensive than Nova Pro.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
GLM-5.3 accepts 1,000,000 input tokens compared to Nova Pro's 300,000 tokens. Nova Pro can generate longer responses up to 300,000 tokens, while GLM-5.3 is limited to 128,000 tokens.
Input Capabilities
Supported data types and modalities
Nova Pro supports multimodal inputs, whereas GLM-5.3 does not.
Nova Pro can handle both text and other forms of data like images, making it suitable for multimodal applications.
GLM-5.3
Nova Pro
Release Timeline
When each model was launched
GLM-5.3 was released on 2026-08-14, while Nova Pro was released on 2024-11-20.
GLM-5.3 is 21 months newer than Nova Pro.
Aug 14, 2026
1 weeks ago
1.7yr newerNov 20, 2024
1.8 years ago
Knowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
GLM-5.3 is available from ZAI. Nova Pro is available from Bedrock.
GLM-5.3
Nova Pro
Outputs Comparison
Judge for yourself.
Run your own prompts against GLM-5.3 and Nova Pro side-by-side, then vote on the output you prefer.
FAQ
Common questions about GLM-5.3 vs Nova Pro.