Instruction following · Anthropic

Claude Haiku 4.5 Mini on IFEval: score, rank and what it means

Claude Haiku 4.5 Mini scores 82.3 on IFEval, placing it #263 of 600 models in the index. The benchmark average is 78.6 and the leader is Claude Opus 4.5 Pro at 96.1.

Score
82.3
0–100 scale
Rank
#263
of 600
Percentile
56th
within the index
Benchmark avg
78.6
all models
Leader
96.1
Claude Opus 4.5 Pro
Gap to leader
13.8
points

Score distribution

The chart shows the top 10 models on IFEval, with Claude Haiku 4.5 Mini highlighted. Longer bars mean higher scores.

Claude Opus 4.5 Pro 96.1
Claude Opus 4.5 Reasoning 95.9
GPT-5.2 Pro 95.6
GPT-5.2 Max 95.2
GPT-5.2 Reasoning 95.0
GPT-5.1 Pro 94.8
Gemini 3 Pro Max 94.7
GPT-5.1 Reasoning 94.6
Claude Opus 4.5 Max 94.5
o4 Reasoning 94.5

Top 10 leaderboard

#ModelProviderContextInput / 1MAvg score
1 Claude Opus 4.5 Pro Anthropic 200000 $20.98 89.1
2 Claude Opus 4.5 Reasoning Anthropic 2000000 $20.91 88.2
3 GPT-5.2 Pro OpenAI 2000000 $21.32 89.6
4 GPT-5.2 Max OpenAI 1000000 $21.39 89.2
5 GPT-5.2 Reasoning OpenAI 1000000 $20.98 87.5
6 GPT-5.1 Pro OpenAI 200000 $19.77 87.8
7 Gemini 3 Pro Max Google DeepMind 2000000 $20.57 87.9
8 GPT-5.1 Reasoning OpenAI 400000 $20.27 88.3
9 Claude Opus 4.5 Max Anthropic 1000000 $20.90 87.8
10 o4 Reasoning OpenAI 1000000 $19.69 87.5

What this score means

On IFEval, Claude Haiku 4.5 Mini sits at #263 of 600. The leader, Claude Opus 4.5 Pro, scores 96.1, so the gap to the top is 13.8 points. The median model in this index scores 81.2, which puts Claude Haiku 4.5 Mini above the midpoint.

Anthropic models average 88.3 on this benchmark. Claude Haiku 4.5 Mini is 6.0 points below that provider line, so it is a weaker result than the average Anthropic model.

Among mid-range models, the average is 76.5. Claude Haiku 4.5 Mini is 5.8 points above that group. This is the more useful comparison if you are shortlisting within the same tier rather than across the whole index.

Read a 82.3 as a relative signal, not an absolute guarantee. Benchmark scores depend on prompt format, evaluation harness and contamination controls. Use this page to narrow the shortlist, then test the model on your own data.

Price context

At $8.76 per million input tokens, Claude Haiku 4.5 Mini is above the median input price of $4.00 across the 600 models scored on IFEval. The models immediately around it in the ranking are shown below so you can compare score and price together.

ModelProviderContextInput / 1MAvg score
DBRX Instruct Databricks 8192 $3.21 72.4
Firefunction Max Fireworks AI 32768 $9.12 73.2
Llama 3 Replicate Chat Replicate 200000 $3.74 74.7
Yi-Large Chat 01.AI 65536 $3.49 73.5
Claude Haiku 4.5 Mini Anthropic 16384 $8.76 71.6
DBRX Databricks 65536 $3.29 73.3
Llama 3 DeepInfra Instruct DeepInfra 65536 $3.84 75.5

Other benchmarks for Claude Haiku 4.5 Mini

BenchmarkScoreRankPercentileRelative
MMLU-Pro 77.0 275 54th
GPQA Diamond 66.1 341 43th
SWE-bench Verified 60.0 326 46th
HumanEval 76.3 323 46th
MATH-500 73.7 351 42th
AIME 2025 67.1 311 48th
LiveCodeBench 62.3 346 42th
TruthfulQA 75.5 319 47th
HellaSwag 81.2 361 40th
MMMU 66.6 362 40th
Arena Elo 1370.3 315 48th

FAQ

What score does Claude Haiku 4.5 Mini get on IFEval?

Claude Haiku 4.5 Mini scores 82.3 on IFEval in this index. The benchmark average is 78.6 and the top score is 96.1.

How does Claude Haiku 4.5 Mini rank on IFEval?

It ranks #263 of 600 models, in the 56th percentile. The leader is Claude Opus 4.5 Pro at 96.1.

Is Claude Haiku 4.5 Mini good at IFEval?

Yes, relative to the index: it is above the median and inside the top half of scores. The result should be read alongside its price and context window.

How is the IFEval score calculated?

IFEval is a instruction following benchmark. Scores in this index are modelled estimates on a 0–100 scale (or Elo for Arena), derived from capability tier and benchmark difficulty. They are not official leaderboard results.

What does Claude Haiku 4.5 Mini cost?

Claude Haiku 4.5 Mini costs $8.76 per million input tokens and $34.31 per million output tokens.

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