Instruction FollowingDeprecated
Trust Score:
25

IFEval

~500 prompts, each carrying an explicit, machine-checkable constraint (format, content, or style) that a response must respect.

Launched: Refresh: static
Status Assessment (deprecated):

Deprecated in this wiki for frontier instruction-following comparison: it remains a useful cheap regression check, but its simple verifiable prompts have become a floor and newer suites cover multi-constraint, multi-turn, and agentic instruction following more directly.

Performance Timeline

Longitudinal progression of model scores against human baselines.

Performance & Historical Trajectory

Empirical score progression across model release dates and evaluation rounds.

Independent Vendor-Reported Human Baseline (92.5%)
ModelScoreDateSource TypeProvenance
DeepSeek V4-Flash62%2026-08-20independentSource ↗
DeepSeek V4-Pro64.8%2026-08-20independentSource ↗
Claude Fable 5.1 (Hybrid Reasoning)81.3%2026-08-19independentSource ↗
Gemini 3.7 Flash65.9%2026-08-17independentSource ↗
Grok 4.665.1%2026-08-16independentSource ↗
GPT-595.5%2026-08-11independentSource ↗
DeepSeek V4.1 Flash82%2026-08-05independentSource ↗
GPT-6 Astra (max)78%2026-08-01independentSource ↗
Kimi K376%2026-07-30independentSource ↗
Claude Sonnet 594.8%2026-07-28independentSource ↗
Claude Opus 567.5%2026-07-28independentSource ↗
Gemini 3.6 Flash64.5%2026-07-25independentSource ↗
Gemini 3.5 Flash-Lite61.5%2026-07-25independentSource ↗
GPT-5.5 Thinking68%2026-07-13independentSource ↗
GPT-5.6 Sol80%2026-07-13independentSource ↗
Qwen3-235B64%2026-06-22independentSource ↗
QwQ Plus63%2026-06-22independentSource ↗
Grok 494%2026-06-19independentSource ↗
GLM-5.266%2026-06-16independentSource ↗
Claude Fable 570%2026-06-13independentSource ↗
Gemini 3 Pro93.5%2026-05-22independentSource ↗
o377.2%2025-12-24independentSource ↗
Mistral Large 388%2025-11-16independentSource ↗
Gemma 3 27B Preview74%2025-04-16independentSource ↗
Llama 4 Maverick90%2025-04-09independentSource ↗
Llama 4 Scout89%2025-04-09independentSource ↗
Gemini 2.5 Pro77%2025-03-29independentSource ↗
QwQ 32B85%2025-03-09independentSource ↗
GPT-4.591.5%2025-03-03independentSource ↗
Claude 3.7 Sonnet77%2025-02-28independentSource ↗
Grok 376.5%2025-02-21independentSource ↗
Gemini 2.5 Flash (Thinking)77%2025-02-14independentSource ↗
Gemini 2.0 Pro88%2025-02-09independentSource ↗
Sonar Reasoning Pro75.2%2025-02-09independentSource ↗
Gemini 2.0 Flash88.7%2025-02-09independentSource ↗
o3-mini75%2025-02-04independentSource ↗
Qwen 2.5 Max87%2025-02-01independentSource ↗
DeepSeek-R175.2%2025-01-24independentSource ↗
Gemini 2.0 Flash Thinking89%2025-01-24independentSource ↗
DeepSeek-V387.5%2024-12-30independentSource ↗
Sonar Pro75.5%2024-12-14independentSource ↗
Llama 3.3 70B86.2%2024-12-10independentSource ↗
Llama 3.3 70B Instruct72.5%2024-12-10independentSource ↗
o187.5%2024-12-09independentSource ↗
QwQ-32B Preview75%2024-12-02independentSource ↗
GPT-4o90.8%2024-11-24independentSource ↗
Sonar73%2024-11-19independentSource ↗
Claude 3.5 Sonnet (v2)75%2024-10-26independentSource ↗
Claude 3.5 Sonnet89.5%2024-10-26independentSource ↗
Qwen 2.5 72B Instruct72%2024-09-23independentSource ↗
Gemma 2 2B60%2024-08-04independentSource ↗
Mistral Large 272%2024-07-28independentSource ↗
Llama 3.1 405B86.5%2024-07-27independentSource ↗
Gemma 2 27B71%2024-07-01independentSource ↗
Gemma 2 9B67.5%2024-07-01independentSource ↗

Human Baseline & Difficulty Horizon

Calibrated human reference points, specialist benchmarks, and ceiling thresholds.
Measured Human Score92.5%Domain Expert Baseline
Baseline Protocol & Interpretation

Measured human strict compliance rate under complex multi-rule constraints (word counts, punctuation, paragraph limits).

Metric & Scoring Methodology

Verification protocols, aggregation formulas, and specialized metric variants.
Primary Metric:prompt- and instruction-level accuracy, strict and loose (%)
Scoring Engine:exact-match

Dataset & Compute Cost

Evaluation volume, public availability, API pricing, and local hardware requirements.
Total Dataset Size541Annotated evaluation items
Public Test SetPublicOpenly mirrored on repositories
Access GatingOpen AccessUnrestricted download
Evaluation LicenseOpen AccessDataset usage and redistribution terms
Frontier API Compute Cost:

$5 – $20 USD for full benchmark evaluation run on frontier APIs.

Recommended Local GPU Setup:

1x NVIDIA RTX 4090 (24GB) or A100 (40GB/80GB) via vLLM / SGLang

Official Dataset & Benchmark Files:Download / View Dataset Repository ↗

How to Run & Reproduce

Standardized evaluation protocols, CLI commands, and reproducible runner templates.
Prompt Regimezero-shot
Reasoning Modedirect
Sampling Temp0
Pass@k Budgetk = 1
Tools & SandboxPure Text
Scoring Verifierexact-match
Option AEleutherAI LM-Evaluation-Harness (Open-Weight Models)
lm_eval --model hf --model_args pretrained=<model_path> --tasks ifeval --batch_size auto
Option BOpenCompass Evaluation Framework
opencompass --datasets ifeval --models <model_config>
Python APIDeterministic Inference Loop Snippet
# Standard API Evaluation Loop
from openai import OpenAI

client = OpenAI()
response = client.chat.completions.create(
    model="gpt-4o",
    messages=[{"role": "user", "content": prompt}],
    temperature=0.0,
)
Standardized Reporting Requirement:

When publishing results for IFEval, always report the exact prompt template, few-shot exemplar ordering, sampling temperature (temperature=0), maximum reasoning budget tokens, and the precise timestamped model snapshot ID.

Contamination & Memorization Analysis

Audit of pretraining exposure risks, memorization vectors, and refresh policies.
Overall Contamination Risk:LOW
Refresh Cadence:

Static fixed snapshot

Test Set Exposure:

Public on web / HuggingFace