Thinking Machines: Inkling Small
Inkling Small is a Thinking Machines model that accepts text, image, and audio input. It offers a 524,288-token context window and can return up to 262,144 tokens in a single completion, enough room for long documents, large codebases, or extended transcripts. It supports tool calling and reasoning. The available data does not confirm structured output support or whether the weights are open. Pricing is $0.45 per million input tokens and $1.20 per million output tokens. Teams handling high volumes of long or mixed-media inputs should weigh it against similarly priced options. Its blended benchmark score of 40.6 rests on a single independent benchmark, an AI Index score of 42.3. That is too little evidence to place it reliably against alternatives. Treat it as a candidate to test on your own workload rather than a proven performer.
Benchmark results
Independent, published benchmarks. Blended score 40.6 across 1 benchmark, last refreshed 2026-10-13. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 42.3 |
- Model ID
- thinkingmachines/inkling-small
- 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
What it costs in practice
Computed from the current $0.45/M input and $1.20/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.02 |
| Classify 1,000 customer emails | 500k in / 50k out | $0.29 |
| A month of a busy support chatbot | 5M in / 2M out | $4.65 |
Price & spec history
Tracked daily by PicksByModel since 2026-08-01.
| Date | Input /M | Output /M | Context |
|---|---|---|---|
| 2026-09-26 | $0.45 | $1.20 | 524,288 |
| 2026-08-21 | $0.45 | $1.20 | 1,048,576 |
| 2026-08-08 | $0.45 | $1.20 | 524,288 |
| 2026-08-01 | $0.50 | $1.20 | 524,288 |
Category rankings
Where Thinking Machines: Inkling Small places across the 4 categories it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #8 | TranscriptionVoice · of 25 ranked | 123 |
| #10 | TTS ReplacementVoice · of 25 ranked | 115 |
| #18 | Audio SummarizationVoice · of 25 ranked | 144 |
| #25 | Image CaptioningVision · of 25 ranked | 120 |
Similar models
Quick answers
- How much does Thinking Machines: Inkling Small cost?
- $0.45 per million input tokens and $1.20 per million output tokens.
- What is Thinking Machines: Inkling Small's context window?
- 524,288 tokens, roughly 786 pages of text in a single request.
- Does Thinking Machines: Inkling Small support tool calling?
- It supports tool calling, a reasoning mode.
- Can Thinking Machines: Inkling Small process images?
- Yes, it accepts image input.