Best LLMs for Tool Calls
9 models · 276.4M tokens this week · ranked by real Tool Calls usage
Key facts · week of 2026-08-10
The most-used LLM for the week of is Tencent: Hy3, with 22.8% of OpenRouter token traffic (63.1M tokens).
§The top 3 models (Tencent: Hy3, DeepSeek: DeepSeek V4 Flash 0731, OpenAI: GPT-5.6 Luna (batch)) account for 59.0% of all usage.
§This week's biggest riser is OpenAI: GPT-5.6 Luna (batch), up from #5 to #3.
§The cheapest model in the usage top 10 is OpenAI: GPT-5.6 Luna (batch) at $0.09999999999999999 per 1M input tokens (usage rank #3).
§The largest context window in the top 10 is OpenAI: GPT-5.6 Luna (batch) at 1.1M tokens.
§
Cite as: AI Tier List, LLM Usage Rankings (2026-08-10), www.aitierlist.xyz/en/models/tool-calls — data: OpenRouter
Which model should you pick?
- When quality comes first
- DeepSeek: DeepSeek V4 Flash 0731
- Artificial Analysis intelligence index score 51.8 — highest in this ranking
- The proven default
- Tencent: Hy3
- 22.8% usage share — #1 in real usage
- When cost matters
- Poolside: Laguna S 2.1 (free)
- Cheapest in the top 15 — Free/1M input
- For long docs & codebases
- OpenAI: GPT-5.6 Luna (batch)
- 1.1M token context window
- To bet on the trending choice
- MiniMax: MiniMax M3 (batch)
- New this week at #8
Full ranking · 9 models
| Rank | Model | Share |
|---|---|---|
1 | Tencent: Hy3 | |
2 | DeepSeek: DeepSeek V4 Flash 0731 | |
3 | OpenAI: GPT-5.6 Luna (batch) | |
4 | DeepSeek: DeepSeek V4 Flash 0423 | |
5 | Z.ai: GLM 5.2 (batch) | |
6 | Xiaomi: MiMo-V2.5 | |
7 | DeepSeek: DeepSeek V4 Pro | |
8 | MiniMax: MiniMax M3 (batch) | |
9 | Poolside: Laguna S 2.1 (free) |
Model Comparisons
- Tencent: Hy3 vs DeepSeek: DeepSeek V4 Flash 0731
- Tencent: Hy3 vs OpenAI: GPT-5.6 Luna (batch)
- Tencent: Hy3 vs DeepSeek: DeepSeek V4 Flash 0423
- DeepSeek: DeepSeek V4 Flash 0731 vs OpenAI: GPT-5.6 Luna (batch)
- DeepSeek: DeepSeek V4 Flash 0731 vs DeepSeek: DeepSeek V4 Flash 0423
- OpenAI: GPT-5.6 Luna (batch) vs DeepSeek: DeepSeek V4 Flash 0423
- Full LLM API pricing →
Related AI Tool Tier Lists
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FAQ
What is the most-used LLM for Tool Calls?
Tencent: Hy3 by tencent ranks first for Tool Calls by real token usage. It accounts for roughly 22.8% of tokens in this segment. DeepSeek: DeepSeek V4 Flash 0731, OpenAI: GPT-5.6 Luna (batch), DeepSeek: DeepSeek V4 Flash 0423 follow.
How are these rankings calculated?
Models are ranked by tokens actually consumed through OpenRouter, not by benchmark scores. This page counts only usage tagged as Tool Calls tasks. It refreshes weekly and currently tracks 9 models.
Which is the cheapest LLM for Tool Calls?
Among the paid models in this ranking, OpenAI: GPT-5.6 Luna (batch) is cheapest at $0.10 per 1M input tokens. 1 models in the list are free to use.
Is Tencent: Hy3 still the most-used LLM for Tool Calls right now?
Yes. As of the week of 2026-08-10, Tencent: Hy3 is #1 by real usage. It was #1 last week too. The ranking refreshes weekly, so this page changes as soon as it does.
Which model has the longest context window?
OpenAI: GPT-5.6 Luna (batch) has the longest context window in this ranking at 1.1M tokens.
Token usage and share data aggregated by OpenRouter, refreshed weekly. Prices are USD per 1M tokens. Benchmark scores come from Artificial Analysis; models it hasn't measured show —.