Thinking Machines: Inkling (free)
Inking, from Thinking Machines, is a versatile AI model capable of processing text, images, and audio inputs with a context length of 262144 tokens. It supports reasoning and tools integration, making it suitable for complex tasks that require multi-modal data handling and sophisticated processing. This free-to-use model offers a blended benchmark score of 70.5 across three independent evaluations, placing it within the average range but not outstanding in any specific domain. Those seeking a cost-effective solution with broad modalities and robust reasoning capabilities should consider Inking; however, its performance metrics suggest it may be more suitable for general tasks rather than specialized applications.
Benchmark results
Independent, published benchmarks. Blended score 70.5 across 3 benchmarks, last refreshed 2026-08-22. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 69.8 |
| AI Index Coding | software engineering tasks | 85.9 |
| AI Index Agentic | multi-step tool-using tasks | 56.3 |
- Model ID
- thinkingmachines/inkling:free
- Vendor
- thinkingmachines
- Released
- July 2026
- Tokenizer
- Other
- Input Modalities
- text, image, audio
- Output Modalities
- text
- Max Output
- 262,144 tokens
- Tool Calling
- ✓ supported
- Structured Output
- not supported
- Reasoning Mode
- ✓ supported
- Vision
- ✓ accepts images
- Audio
- ✓ accepts audio
- Moderated
- no
Category rankings
Where Thinking Machines: Inkling (free) places across the 2 categories it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #19 | Audio SummarizationVoice · of 25 ranked | 148 |
| #25 | TranscriptionVoice · of 25 ranked | 121 |
Similar models
Thinking Machines: Inkling Small (free)
Thinking Machines: Inkling Small
Thinking Machines: Inkling
Thinking Machines: Inkling (batch)
Quick answers
- Is Thinking Machines: Inkling (free) free to use?
- Yes. It is currently listed at no cost per token via OpenRouter, subject to provider rate limits.
- What is Thinking Machines: Inkling (free)'s context window?
- 262,144 tokens, roughly 393 pages of text in a single request.
- Does Thinking Machines: Inkling (free) support tool calling?
- It supports tool calling, a reasoning mode.
- Can Thinking Machines: Inkling (free) process images?
- Yes, it accepts image input.