IFBench

Overview

IFBench is a benchmark designed to evaluate how reliably AI models follow novel, challenging, and diverse verifiable instructions, with a strong focus on out-of-domain generalization. Developed by AllenAI, it addresses overfitting and data contamination issues in existing benchmarks.

Task Description

Task Type: Instruction Following Evaluation
Input: Prompts with verifiable constraints
Output: Responses that must satisfy specific constraints
Focus: Precise instruction-following capabilities

Key Features

58 manually curated verifiable constraints
Categories: counting, formatting, word usage, etc.
Focus on out-of-domain generalization
Programmatic verification of constraint satisfaction
Addresses data contamination concerns

Evaluation Notes

Default configuration uses 0-shot evaluation
Metrics: prompt_level_strict, inst_level_strict, prompt_level_loose, inst_level_loose
Requires emoji, syllapy packages
Evaluates both strict and loose constraint satisfaction

Properties

Property	Value
Benchmark Name	`ifbench`
Dataset ID	allenai/IFBench_test
Paper	N/A
Tags	`InstructionFollowing`
Metrics	`prompt_level_strict`, `inst_level_strict`, `prompt_level_loose`, `inst_level_loose`
Default Shots	0-shot
Evaluation Split	`train`

Data Statistics

Metric	Value
Total Samples	300
Prompt Length (Mean)	343.41 chars
Prompt Length (Min/Max)	50 / 904 chars

Sample Example

Subset: default

{
  "input": [
    {
      "id": "9e0a5835",
      "content": "What should the world's smartest man, surrounded by corruption, greed, inequity, madness, inequality, an establishment who preached conspiracy theories and wild speculations over truth and an equally evil resistance funded by the mega rich, a ... [TRUNCATED] ... ad here. Include keyword kaleidoscope once in your response, keyword nebula twice in your response, keyword whisper three times in your response, keyword labyrinth five times in your response, and keyword paradox seven times in your response."
    }
  ],
  "target": "",
  "id": 0,
  "group_id": 0,
  "metadata": {
    "key": "0",
    "prompt": "What should the world's smartest man, surrounded by corruption, greed, inequity, madness, inequality, an establishment who preached conspiracy theories and wild speculations over truth and an equally evil resistance funded by the mega rich, a ... [TRUNCATED] ... ad here. Include keyword kaleidoscope once in your response, keyword nebula twice in your response, keyword whisper three times in your response, keyword labyrinth five times in your response, and keyword paradox seven times in your response.",
    "instruction_id_list": [
      "count:keywords_multiple"
    ],
    "kwargs": [
      {
        "N": null,
        "capital_frequency": null,
        "capital_relation": null,
        "end_phrase": null,
        "first_word": null,
        "forbidden_words": null,
        "frequency": null,
        "keyword": null,
        "keyword1": "kaleidoscope",
        "keyword2": "nebula",
        "keyword3": "whisper",
        "keyword4": "labyrinth",
        "keyword5": "paradox",
        "keywords": null,
        "language": null,
        "let_frequency": null,
        "let_relation": null,
        "letter": null,
        "m": null,
        "max_words": null,
        "min_words": null,
        "n": null,
        "n_end": null,
        "n_start": null,
        "nth_paragraph": null,
        "num_bullets": null,
        "num_highlights": null,
        "num_paragraphs": null,
        "num_placeholders": null,
        "num_sections": null,
        "num_sentences": null,
        "num_words": null,
        "options": null,
        "percentage": null,
        "postscript_marker": null,
        "prompt_to_repeat": null,
        "reference_text": null,
        "relation": null,
        "section_spliter": null,
        "sep": null,
        "small_n": null,
        "word": null
      }
    ]
  }
}

Note: Some content was truncated for display.

Prompt Template

No prompt template defined.

Usage

Using CLI

evalscope eval \
    --model YOUR_MODEL \
    --api-url OPENAI_API_COMPAT_URL \
    --api-key EMPTY_TOKEN \
    --datasets ifbench \
    --limit 10  # Remove this line for formal evaluation

Using Python

from evalscope import run_task
from evalscope.config import TaskConfig

task_cfg = TaskConfig(
    model='YOUR_MODEL',
    api_url='OPENAI_API_COMPAT_URL',
    api_key='EMPTY_TOKEN',
    datasets=['ifbench'],
    limit=10,  # Remove this line for formal evaluation
)

run_task(task_cfg=task_cfg)

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