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GLM-5.3-Flash vs Grok-2 Image 1212

Comparing GLM-5.3-Flash and Grok-2 Image 1212 across benchmarks, pricing, and capabilities.

Zhipu AI · xAI · Updated for 2026

Which is better?

GLM-5.3-Flash and Grok-2 Image 1212 trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.

GLM-5.3-Flash also accepts a larger context window (1,048,576 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

  • you process long inputs — it offers a 1,048,576 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 Grok-2 Image 1212

  • you are already invested in the xAI ecosystem

At a glance

The differences that matter most.

GLM-5.3-Flash
Zhipu AI
Grok-2 Image 1212
xAI
Benchmark wins
—
—
Input price
$0.15 / M
— / M
Output price
$0.50 / M
— / M
Context window
1,048,576
131,072
Released
Aug 2026
Dec 2024
License
MIT
Proprietary

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

GLM-5.3-Flash and Grok-2 Image 1212don'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

Context Window

Maximum input and output token capacity

GLM-5.3-Flash accepts 1,048,576 input tokens compared to Grok-2 Image 1212's 131,072 tokens. Only GLM-5.3-Flash specifies output context (131,072 tokens).

Zhipu AI
GLM-5.3-Flash
Input1,048,576 tokens
Output131,072 tokens
xAI
Grok-2 Image 1212
Input131,072 tokens
Output- tokens
Wed Aug 26 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GLM-5.3-Flash supports multimodal inputs, whereas Grok-2 Image 1212 does not.

GLM-5.3-Flash can handle both text and other forms of data like images, making it suitable for multimodal applications.

GLM-5.3-Flash

Text
Images
Audio
Video

Grok-2 Image 1212

Text
Images
Audio
Video

License

Usage and distribution terms

GLM-5.3-Flash is licensed under MIT, while Grok-2 Image 1212 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

Grok-2 Image 1212

Proprietary

Closed source

Release Timeline

When each model was launched

GLM-5.3-Flash was released on 2026-08-26, while Grok-2 Image 1212 was released on 2024-12-12.

GLM-5.3-Flash is 21 months newer than Grok-2 Image 1212.

GLM-5.3-Flash

Aug 26, 2026

0 days ago

1.7yr newer
Grok-2 Image 1212

Dec 12, 2024

1.7 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 DeepInfra, Novita, ZAI. Grok-2 Image 1212 is available from xAI.

GLM-5.3-Flash

deepinfra logo
Deepinfra
Input Price:Input: $0.15/1MOutput Price:Output: $0.50/1M
novita logo
Novita
Input Price:Input: $0.15/1MOutput Price:Output: $0.50/1M
z logo
Unknown Organization
Input Price:Input: $0.15/1MOutput Price:Output: $0.50/1M

Grok-2 Image 1212

xai logo
xAI
* 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 Grok-2 Image 1212 side-by-side, then vote on the output you prefer.

GLM-5.3-Flash
✓ Preferred
Grok-2 Image 1212
Open in Playground

FAQ

Common questions about GLM-5.3-Flash vs Grok-2 Image 1212.

Which is better, GLM-5.3-Flash or Grok-2 Image 1212?

GLM-5.3-Flash (Zhipu AI) and Grok-2 Image 1212 (xAI) 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 Grok-2 Image 1212 in benchmarks?

GLM-5.3-Flash scores CharXiv-R: 89.4%, Terminal-Bench 2.1: 84.3%, MMVU: 80.5%, Toolathlon: 78.4%, Chartography: 78.0%.

What are the context window sizes for GLM-5.3-Flash and Grok-2 Image 1212?

GLM-5.3-Flash supports 1.0M tokens and Grok-2 Image 1212 supports 131K 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 Grok-2 Image 1212?

Key differences include context window (1.0M vs 131K), multimodal support (yes vs no), licensing (MIT vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes GLM-5.3-Flash and Grok-2 Image 1212?

GLM-5.3-Flash is developed by Zhipu AI and Grok-2 Image 1212 is developed by xAI.

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