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GLM-5.3 vs Grok-2 Image 1212

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

Zhipu AI · xAI · Updated for 2026

Which is better?

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

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 Grok-2 Image 1212

  • you are already invested in the xAI ecosystem

At a glance

The differences that matter most.

GLM-5.3
Zhipu AI
Grok-2 Image 1212
xAI
Benchmark wins
—
—
Input price
$1.40 / M
— / M
Output price
$4.40 / M
— / M
Context window
1,000,000
131,072
Released
Aug 2026
Dec 2024
License
Unknown
Proprietary

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

GLM-5.3 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 accepts 1,000,000 input tokens compared to Grok-2 Image 1212's 131,072 tokens. Only GLM-5.3 specifies output context (128,000 tokens).

Zhipu AI
GLM-5.3
Input1,000,000 tokens
Output128,000 tokens
xAI
Grok-2 Image 1212
Input131,072 tokens
Output- tokens
Mon Aug 24 2026 • llm-stats.com

Release Timeline

When each model was launched

GLM-5.3 was released on 2026-08-14, while Grok-2 Image 1212 was released on 2024-12-12.

GLM-5.3 is 20 months newer than Grok-2 Image 1212.

GLM-5.3

Aug 14, 2026

1 weeks 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 is available from ZAI. Grok-2 Image 1212 is available from xAI.

GLM-5.3

z logo
Unknown Organization
Input Price:Input: $1.40/1MOutput Price:Output: $4.40/1M

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 and Grok-2 Image 1212 side-by-side, then vote on the output you prefer.

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

FAQ

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

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

GLM-5.3 (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 compare to Grok-2 Image 1212 in benchmarks?

GLM-5.3 scores Terminal-Bench 2.1: 88.2%, CyberGym: 84.5%, FrontierSWE: 78.1%, Toolathlon: 73.0%, DeepSWE 1.1: 66.9%.

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

GLM-5.3 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 and Grok-2 Image 1212?

Key differences include context window (1.0M vs 131K), licensing (Unknown vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

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

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

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