Automated page. Written and translated automatically by AI and checked against the sources by software; no human editor. SI-IQ is an index built from public benchmark results, not an IQ test. How it works
How smart is GLM-5.3?
GLM-5.3 is a model from Z.ai (Zhipu AI), released on Aug 14, 2026. Its SI-IQ is 125 (90% interval 122–128), estimated from 9 benchmark results by 2 evaluators.
Data as of Oct 18, 2026 · method 1.0.0
Facts
- Developer
- Z.ai (Zhipu AI)
- Released
- Aug 14, 2026
- Access
- Open weights (restricted licence)
- Benchmarks used
- 9 benchmark results from 2 evaluators
- API price
- $1.40 input / $4.40 output per 1M tokens (developer's price list, Oct 18, 2026)
- Context window
- 1,000,000 tokens
Ability by area (SI-IQ, 90% interval)
Every benchmark result we used
Each score is one value exactly as the source published it: for Epoch AI the best of its run settings, for OpenRouter the median hosting provider (the developer's own hosting when it ran the test). “Implied SI-IQ” is the ability that this single result points to; the overall SI-IQ is their precision-weighted average.
| Benchmark | Score | Evaluated by | Source |
|---|---|---|---|
| Chess Puzzles | 37.0% | Epoch AI | Epoch AI Benchmarking Hub · data file |
| Mystery Game Puzzles | 33.0% | Epoch AI | Epoch AI Benchmarking Hub · data file |
| FrontierMath Tier 4 | 29.3% | Epoch AI | Epoch AI Benchmarking Hub · data file |
| FrontierMath Tiers 1–3 | 68.8% | Epoch AI | Epoch AI Benchmarking Hub · data file |
| OTIS Mock AIME 2024–2025 | 91.1% | Epoch AI | Epoch AI Benchmarking Hub · data file |
| GPQA Diamond | 90.9% | Epoch AI | Epoch AI Benchmarking Hub · data file |
| GPQA Diamond (OpenRouter run) | 86.4% | OpenRouter | OpenRouter benchmark datasets · data file |
| SimpleQA Verified | 41.0% | Epoch AI | Epoch AI Benchmarking Hub · data file |
| τ²-bench Airline (OpenRouter run) | 78.1% | OpenRouter | OpenRouter benchmark datasets · data file |
Models with similar SI-IQ
| Model | SI-IQ | |
|---|---|---|
| GPT-5.2OpenAI | 125 | GLM-5.3 vs GPT-5.2 |
| Qwen3.7-MaxAlibaba | 125 | GLM-5.3 vs Qwen3.7-Max |
| Gemini 3.6 FlashGoogle DeepMind | 125 | GLM-5.3 vs Gemini 3.6 Flash |
| Claude Sonnet 5Anthropic | 126 | GLM-5.3 vs Claude Sonnet 5 |
| Grok 4.6xAI | 126 | GLM-5.3 vs Grok 4.6 |
Computed with SI-IQ method version 1.0.0. Read the full methodology
Data sources: Epoch AI, ‘Capabilities & benchmarking’ (CC BY 4.0); LiteLLM, model_prices_and_context_window.json (MIT); Source: OpenRouter (openrouter.ai), licensed under CC BY 4.0: reuse and republish with attribution to OpenRouter (licences and changes).