◆ Underrated
FastContext 1.0 (4B)
Microsoft Research🇺🇸 US
code
– API– OpenRouter
Microsoft's specialized code-search model for coding agents — powers the 'Explore' subagent in SWE-FastContext. Not a general-purpose LLM, but relevant for agentic setups.
At a glance
Parameters
4B
Input
text, code
Specifications
- Status
- Released
- Date
- June 17, 2026
- Lab
- Microsoft Research
- Origin
- US
- Type
- code
- Open weights
- Yes
- License
- MIT
- Parameters
- 4B
- Input
- text, code
- Output
- text, code
Availability
Direct API access–
OpenRouter–
Open weights✓ Yes