Instructions to use FineEnvs/LFM2.5-2.6B-multiharness-RL with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use FineEnvs/LFM2.5-2.6B-multiharness-RL with Transformers:

# Use a pipeline as a high-level helper
from transformers import pipeline

pipe = pipeline("text-generation", model="FineEnvs/LFM2.5-2.6B-multiharness-RL")
messages = [
    {"role": "user", "content": "Who are you?"},
]
pipe(messages)

# pip install -U transformers accelerate
# Load model directly
from transformers import AutoTokenizer, AutoModelForCausalLM

tokenizer = AutoTokenizer.from_pretrained("FineEnvs/LFM2.5-2.6B-multiharness-RL")
model = AutoModelForCausalLM.from_pretrained("FineEnvs/LFM2.5-2.6B-multiharness-RL", device_map="auto")
messages = [
    {"role": "user", "content": "Who are you?"},
]
inputs = tokenizer.apply_chat_template(
	messages,
	add_generation_prompt=True,
	tokenize=True,
	return_dict=True,
	return_tensors="pt",
).to(model.device)

outputs = model.generate(**inputs, max_new_tokens=256)
print(tokenizer.decode(outputs[0][inputs["input_ids"].shape[-1]:]))

Notebooks
Google Colab
Kaggle
Local Apps Settings

vLLM

How to use FineEnvs/LFM2.5-2.6B-multiharness-RL with vLLM:

Install from pip and serve model

# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "FineEnvs/LFM2.5-2.6B-multiharness-RL"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "FineEnvs/LFM2.5-2.6B-multiharness-RL",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Use Docker

docker model run hf.co/FineEnvs/LFM2.5-2.6B-multiharness-RL

SGLang

How to use FineEnvs/LFM2.5-2.6B-multiharness-RL with SGLang:

Install from pip and serve model

# Install SGLang from pip:
pip install sglang
# Start the SGLang server:
python3 -m sglang.launch_server \
    --model-path "FineEnvs/LFM2.5-2.6B-multiharness-RL" \
    --host 0.0.0.0 \
    --port 30000
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:30000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "FineEnvs/LFM2.5-2.6B-multiharness-RL",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Use Docker images

docker run --gpus all \
    --shm-size 32g \
    -p 30000:30000 \
    -v ~/.cache/huggingface:/root/.cache/huggingface \
    --env "HF_TOKEN=<secret>" \
    --ipc=host \
    lmsysorg/sglang:latest \
    python3 -m sglang.launch_server \
        --model-path "FineEnvs/LFM2.5-2.6B-multiharness-RL" \
        --host 0.0.0.0 \
        --port 30000
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:30000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "FineEnvs/LFM2.5-2.6B-multiharness-RL",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Docker Model Runner
How to use FineEnvs/LFM2.5-2.6B-multiharness-RL with Docker Model Runner:
```
docker model run hf.co/FineEnvs/LFM2.5-2.6B-multiharness-RL
```

LFM2.5-2.6B-multiharness-RL / eval_results.json

AdithyaSK HF Staff

Release step 1000 with tokenizer, evaluation results and model card

539fe88 verified 6 days ago

Raw History Blame Contribute Delete

1.81 kB

	{
	"metric": "pass@1",
	"complete": true,
	"graded_cells": 1000,
	"average_pass_at_1": 0.542,
	"harnesses": {
	"opencode": {
	"evaluations": 250,
	"pass_at_1": 0.496,
	"difficulty": {
	"easy": {
	"evaluations": 33,
	"pass_at_1": 0.7575757575757576
	},
	"medium": {
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	"pass_at_1": 0.5084745762711864
	},
	"hard": {
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	}
	}
	},
	"claude-code": {
	"evaluations": 250,
	"pass_at_1": 0.488,
	"difficulty": {
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	"pass_at_1": 0.7272727272727273
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	"medium": {
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	"hard": {
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	}
	}
	},
	"codex": {
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	"pass_at_1": 0.536,
	"difficulty": {
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	},
	"medium": {
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	"pass_at_1": 0.6101694915254238
	},
	"hard": {
	"evaluations": 99,
	"pass_at_1": 0.37373737373737376
	}
	}
	},
	"mini-swe-agent": {
	"evaluations": 250,
	"pass_at_1": 0.648,
	"difficulty": {
	"easy": {
	"evaluations": 33,
	"pass_at_1": 0.9090909090909091
	},
	"medium": {
	"evaluations": 118,
	"pass_at_1": 0.6864406779661016
	},
	"hard": {
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	}
	}
	}
	},
	"tito_pass": true,
	"comparison_ready": true
	}