# Flint

> Flint is Recursive's open-weight mixture-of-experts model for coding agents, with about 39.8B total and 2.5B active parameters per token. It supports reasoning and multi-turn tool use, with a 262K-token context window.

**ID**: `recursive/flint-v1.0`  
**Creator**: recursive  
**Category**: text  
**Context**: 262K tokens  
**Input**: $0  
**Output**: $0  
**Released**: 2026-10-21  
**Web page**: https://anyrouter.dev/model/recursive/flint-v1.0

**Input modalities**: text  
**Output modalities**: text  

**Capabilities**: chat, streaming, reasoning, function-calling, coding

**Aliases**: `recursive/flint-v1.0:free`, `recursive/flint`

## Usage

**Endpoint**: `POST https://anyrouter.dev/api/v1/chat/completions`

```bash
curl https://anyrouter.dev/api/v1/chat/completions \
  -H "Authorization: Bearer $ANYROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "recursive/flint-v1.0",
  "messages": [
    {
      "role": "user",
      "content": "Say hi in 3 words."
    }
  ]
}'
```

## Providers

| Provider | Input | Output |
| --- | --- | --- |
| kilo | $0 | $0 |
| hagiang | $0 | $0 |
| openrouter-byok | $0 | $0 |

## Model card

- Architecture: mixture of experts [1]
- Total parameters: 39.8B [1]
- Active parameters: 2.5B [1]
- Native context: 262144 tokens [1]
- Training cutoff: 2026-06 [1]
- License: Apache-2.0, open weights (https://huggingface.co/RecursiveSI/flint) [1]

### Strengths [1]

- Built for investigating codebases, fixing bugs, implementing features and writing tests
- Reasoning and multi-turn tool use

### Known limits [1]

- Text input and output only

### Links

- announcement: https://www.recursive.com/updates/introducing-recursive-flint
- model card: https://huggingface.co/RecursiveSI/flint

### Sources

1. [Recursive Flint model card](https://huggingface.co/RecursiveSI/flint) (accessed 2026-10-22)

## Source

- Upstream docs: https://huggingface.co/RecursiveSI/flint