LLM Comparison
ERNIE 4.5 21B A3B Thinking vs GLM-5.3-Flash
Side-by-side specs, pricing & capabilities · Updated September 2026
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2/6 modelsSame tier:
| Organization | ||
| OpenTools Score | 75 463 | |
| Family | ERNIE | GLM |
| Status | Current | Current |
| Release Date | Oct 2025 | Aug 2026 |
| Context Window | 131K tokens | 1.3M tokens |
| Input Price | $0.07/M tokens | $0.07/M tokens |
| Output Price | $0.28/M tokens | $0.25/M tokens |
| Pricing Notes | — | OpenRouter lists a limited-time discounted price of $0.075/M input and $0.25/M output. Standard first-party style pricing is commonly $0.15/M input and $0.50/M output; cache-read pricing may vary by provider. |
| Capabilities | textcodeextended-thinking | textvisionvideo-inputcodetool-usereasoninglong-contextopen-weights |
| Training Cutoff | — | Not disclosed |
| Max Output | 66K tokens | 131K tokens |
| API Identifier | baidu/ernie-4.5-21b-a3b-thinking | z-ai/glm-5.3-flash |
| Benchmarks | ||
| Artificial Analysis Intelligence Index v4.1.1 | — | 57artificial-analysis |
| MMLU | — | 88.1official |
| View ERNIE 4.5 21B A3B Thinking | View GLM-5.3-Flash | |
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| GLM-5.3-FlashCheapest | $0.08 | $0.13 | $0.20 | — |
| ERNIE 4.5 21B A3B Thinking | $0.07 | $0.14 | $0.21 | +5% |
Baidu
ERNIE 4.5 21B A3B Thinking
ERNIE 4.5 21B A3B Thinking is a large language model from Baidu. Supports up to 131,072 token context window. Available from $0.07/M input tokens.
Z.ai
GLM-5.3-Flash
GLM-5.3-Flash is Z.ai’s open-weight GLM-5 model for efficient coding, long-horizon agent tasks, and long-context multimodal reasoning. It uses a hybrid sparse and linear attention design with 320B total parameters and 18B active parameters.
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