GLM-5.3 vs Llama 3.1 8B Instruct
Comparing GLM-5.3 and Llama 3.1 8B Instruct across benchmarks, pricing, and capabilities.
Zhipu AI · Meta · Updated for 2026
Which is better?
GLM-5.3 and Llama 3.1 8B Instruct trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.
On price, Llama 3.1 8B Instruct is roughly 71.7x 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 Llama 3.1 8B Instruct
- cost matters — it's about 71.7x cheaper per token
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Performance Benchmarks
Comparative analysis across standard metrics
GLM-5.3 and Llama 3.1 8B Instructdon'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 46.7x more expensive than Llama 3.1 8B Instruct ($0.03/1M tokens).
For output processing, GLM-5.3 ($4.40/1M tokens) is 146.7x more expensive than Llama 3.1 8B Instruct ($0.03/1M tokens).
In conclusion, GLM-5.3 is more expensive than Llama 3.1 8B Instruct.*
* Using a 3:1 ratio of input to output tokens
Model Size
Parameter count comparison
GLM-5.3 has 745.0B more parameters than Llama 3.1 8B Instruct, making it 9312.5% larger.
Context Window
Maximum input and output token capacity
GLM-5.3 accepts 1,000,000 input tokens compared to Llama 3.1 8B Instruct's 131,072 tokens. Llama 3.1 8B Instruct can generate longer responses up to 131,072 tokens, while GLM-5.3 is limited to 128,000 tokens.
Release Timeline
When each model was launched
GLM-5.3 was released on 2026-08-14, while Llama 3.1 8B Instruct was released on 2024-07-23.
GLM-5.3 is 25 months newer than Llama 3.1 8B Instruct.
Aug 14, 2026
1 weeks ago
2.1yr newerJul 23, 2024
2.1 years ago
Knowledge Cutoff
When training data ends
Llama 3.1 8B Instruct has a documented knowledge cutoff of 2023-12-31, while GLM-5.3's cutoff date is not specified.
We can confirm Llama 3.1 8B Instruct's training data extends to 2023-12-31, but cannot make a direct comparison without GLM-5.3's cutoff date.
—
Dec 2023
Provider Availability
GLM-5.3 is available from ZAI. Llama 3.1 8B Instruct is available from Lambda, DeepInfra, Groq, Sambanova, Cerebras, Hyperbolic, Together, Fireworks, Bedrock.
GLM-5.3
Llama 3.1 8B Instruct
Outputs Comparison
Judge for yourself.
Run your own prompts against GLM-5.3 and Llama 3.1 8B Instruct side-by-side, then vote on the output you prefer.
FAQ
Common questions about GLM-5.3 vs Llama 3.1 8B Instruct.