Your sovereign, private TF K3 Optimised
TF K3 Optimised is ToothFairyAI's efficiency-tuned flagship: we took the frontier K3-class architecture (2.8T-parameter multimodal MoE with native vision, 1M-token context and interleaved thinking) and optimised its reasoning behaviour to produce substantially shorter thinking traces — roughly 40% fewer reasoning tokens — while maintaining comparable quality across our evaluations. The result is frontier-level coding, research and agentic performance at a markedly lower cost and time-to-answer, with vision and function calling fully supported. A reasoning model in the ultra tier, served on ToothFairyAI's AU, EU and US endpoints — private by default, billed in Units of Intelligence at the published rates below. No training on your data, no vendor lock-in.
How TF K3 Optimised compares
Independent intelligence index for TF K3 Optimised against every peer in the Ultra tier (and the tier above where needed) — same source, same tests.
Throughput — tokens per second, median
Latency — end-to-end seconds for a 500-token answer
Capability indexes
Domain-weighted agentic performance for TF K3 Optimised.
Capability index vs ultra peers
The evaluations behind the index
Independent benchmark results for TF K3 Optimised — Elo scores as published; pass rates shown as percentages.
Per-evaluation economics
| Evaluation | Score | Time / task | Output tokens / task |
|---|---|---|---|
| AA-Briefcase | 1504.04 | 49.5 min | 119873 |
| GDPval-AA | 1523.97 | 24.5 min | 59382 |
| AutomationBench-AA | 58.3% | 8.2 min | 19920 |
| Terminal-Bench 4.0 | 12.6% | 50.8 min | 122899 |
| SciCode | 59.5% | 1.5 min | 3520 |
| Humanity's Last Exam | 46.9% | 10.8 min | 26162 |
| GDP.pdf | 22.0% | 4.0 min | 9597 |
| CritPt | 23.4% | 24.5 min | 59238 |
| AA-Omniscience | 19.70 | 3.6 min | 8813 |
| AA-LCR (long context) | 88.7% | 0.6 min | 1529 |
Run TF K3 Optimised privately
One key, one endpoint, three jurisdictions.
- Size tierUltra
- Input rate4.20 UoI/1M
- Output rate21.00 UoI/1M
- Cached input rate0.42 UoI/1M
- Context window1049K tokens
- Max output120K tokens
- ReasoningYes — emits thinking traces
- Vision & video inputSupports image input
- Tool callingSupported
- Data residencyAU, EU and US endpoints — processing stays inside the region you call