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GLM-5.3-Flash vs Nova Pro

Comparing GLM-5.3-Flash and Nova Pro across benchmarks, pricing, and capabilities.

Zhipu AI · Amazon · Updated for 2026

Which is better?

GLM-5.3-Flash and Nova Pro trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.

On price, GLM-5.3-Flash is roughly 5.9x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

GLM-5.3-Flash 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-Flash

  • cost matters — it's about 5.9x cheaper per token
  • you process long inputs — it offers a 1,000,000 token context window
  • you want the most recent training data — it shipped Aug 2026
  • you need open weights you can self-host or fine-tune

Choose Nova Pro

  • you want predictable pricing at $0.80/M input and $3.20/M output

At a glance

The differences that matter most.

GLM-5.3-Flash
Zhipu AI
Nova Pro
Amazon
Benchmark wins
—
—
Input price
$0.15 / M
$0.80 / M
Output price
$0.50 / M
$3.20 / M
Context window
1,000,000
300,000
Released
Aug 2026
Nov 2024
License
MIT
Proprietary

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

GLM-5.3-Flash 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

GLM-5.3-Flash costs less

For input processing, GLM-5.3-Flash ($0.15/1M tokens) is 5.3x cheaper than Nova Pro ($0.80/1M tokens).

For output processing, GLM-5.3-Flash ($0.50/1M tokens) is 6.4x cheaper than Nova Pro ($3.20/1M tokens).

In conclusion, Nova Pro is more expensive than GLM-5.3-Flash.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Wed Aug 26 2026 • llm-stats.com
Zhipu AI
GLM-5.3-Flash
Input tokens$0.15
Output tokens$0.50
Best providerUnknown Organization
Amazon
Nova Pro
Input tokens$0.80
Output tokens$3.20
Best providerAWS Bedrock
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

GLM-5.3-Flash 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-Flash is limited to 131,072 tokens.

Zhipu AI
GLM-5.3-Flash
Input1,000,000 tokens
Output131,072 tokens
Amazon
Nova Pro
Input300,000 tokens
Output300,000 tokens
Wed Aug 26 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both GLM-5.3-Flash and Nova Pro support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

GLM-5.3-Flash

Text
Images
Audio
Video

Nova Pro

Text
Images
Audio
Video

License

Usage and distribution terms

GLM-5.3-Flash is licensed under MIT, while Nova Pro uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

GLM-5.3-Flash

MIT

Open weights

Nova Pro

Proprietary

Closed source

Release Timeline

When each model was launched

GLM-5.3-Flash was released on 2026-08-26, while Nova Pro was released on 2024-11-20.

GLM-5.3-Flash is 21 months newer than Nova Pro.

GLM-5.3-Flash

Aug 26, 2026

0 days ago

1.8yr newer
Nova Pro

Nov 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.

No cutoff dates available

Provider Availability

GLM-5.3-Flash is available from ZAI. Nova Pro is available from Bedrock.

GLM-5.3-Flash

z logo
Unknown Organization
Input Price:Input: $0.15/1MOutput Price:Output: $0.50/1M

Nova Pro

bedrock logo
AWS Bedrock
Input Price:Input: $0.80/1MOutput Price:Output: $3.20/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against GLM-5.3-Flash and Nova Pro side-by-side, then vote on the output you prefer.

GLM-5.3-Flash
✓ Preferred
Nova Pro
Open in Playground

FAQ

Common questions about GLM-5.3-Flash vs Nova Pro.

Which is better, GLM-5.3-Flash or Nova Pro?

GLM-5.3-Flash (Zhipu AI) and Nova Pro (Amazon) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does GLM-5.3-Flash compare to Nova Pro in benchmarks?

GLM-5.3-Flash scores CharXiv-R: 89.4%, Terminal-Bench 2.1: 84.3%, MMVU: 80.5%, Toolathlon: 78.4%, MVBench: 77.8%. Nova Pro scores ARC-C: 94.8%, GSM8k: 94.8%, DocVQA: 93.5%, IFEval: 92.1%, ChartQA: 89.2%.

Is GLM-5.3-Flash cheaper than Nova Pro?

GLM-5.3-Flash is 5.3x cheaper for input tokens. GLM-5.3-Flash costs $0.15/M input and $0.50/M output via z. Nova Pro costs $0.80/M input and $3.20/M output via bedrock.

What are the context window sizes for GLM-5.3-Flash and Nova Pro?

GLM-5.3-Flash supports 1.0M tokens and Nova Pro supports 300K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between GLM-5.3-Flash and Nova Pro?

Key differences include context window (1.0M vs 300K), input pricing ($0.15 vs $0.80/M), licensing (MIT vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes GLM-5.3-Flash and Nova Pro?

GLM-5.3-Flash is developed by Zhipu AI and Nova Pro is developed by Amazon.

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