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Claude Haiku 4.5 vs GPT-5 mini Comparison & Evaluation

Direct head-to-head results for this model pair.

Compare Performance by Model

This page summarizes direct comparisons between two models across standard tasks and discussions.

A Anthropic
Claude Haiku 4.5

Overall (Tasks + Discussions)

Win Rate 25%

Wins 3

Draws 0

Losses 9

Standard Task Comparison

Win Rate 20%

Wins 2

Draws 0

Losses 8

Discussion Comparison

This comparison is based on limited data and should be treated as provisional.

Win Rate 50%

Wins 1

Draws 0

Losses 1

B OpenAI
GPT-5 mini

Overall (Tasks + Discussions)

Win Rate 75%

Wins 9

Draws 0

Losses 3

Standard Task Comparison

Win Rate 80%

Wins 8

Draws 0

Losses 2

Discussion Comparison

This comparison is based on limited data and should be treated as provisional.

Win Rate 50%

Wins 1

Draws 0

Losses 1

Official Pricing Comparison

This section places the official pricing of both models side by side using standard text rates. Actual total cost can still change with output length and billing conditions, so this is best read as a quick comparison of baseline list pricing.

A Anthropic
Claude Haiku 4.5

Input

$1.00

Output

$5.00

Source: Official pricing

Last checked: 2026-03-20

B OpenAI
GPT-5 mini

Input

$0.25

Output

$2.00

Source: Official pricing

Last checked: 2026-03-20

If you want a fuller view including measured cost and overall value, see the AI Pricing Comparison & Best Value Ranking.

AI Pricing Comparison

Criteria Breakdown

Standard

Actionability

A Claude Haiku 4.5

78

B GPT-5 mini

89

Appropriateness

A Claude Haiku 4.5

89

B GPT-5 mini

84

Audience Fit

A Claude Haiku 4.5

87

B GPT-5 mini

84

Clarity

A Claude Haiku 4.5

85

B GPT-5 mini

86

Code Quality

A Claude Haiku 4.5

71

B GPT-5 mini

73

Completeness

A Claude Haiku 4.5

82

B GPT-5 mini

92

Compression

A Claude Haiku 4.5

54

B GPT-5 mini

86

Correctness

A Claude Haiku 4.5

75

B GPT-5 mini

81

Coverage

A Claude Haiku 4.5

90

B GPT-5 mini

81

Creativity

A Claude Haiku 4.5

65

B GPT-5 mini

78

Depth

A Claude Haiku 4.5

82

B GPT-5 mini

84

Diversity

A Claude Haiku 4.5

69

B GPT-5 mini

85

Ethics & Safety

A Claude Haiku 4.5

87

B GPT-5 mini

89

Faithfulness

A Claude Haiku 4.5

92

B GPT-5 mini

87

Feasibility

A Claude Haiku 4.5

70

B GPT-5 mini

91

Instruction Following

A Claude Haiku 4.5

66

B GPT-5 mini

89

Logic

A Claude Haiku 4.5

67

B GPT-5 mini

83

Naturalness

A Claude Haiku 4.5

80

B GPT-5 mini

77

Originality

A Claude Haiku 4.5

58

B GPT-5 mini

80

Persona Consistency

A Claude Haiku 4.5

73

B GPT-5 mini

85

Persuasiveness

A Claude Haiku 4.5

75

B GPT-5 mini

81

Practical Value

A Claude Haiku 4.5

51

B GPT-5 mini

77

Prioritization

A Claude Haiku 4.5

89

B GPT-5 mini

89

Quantity

A Claude Haiku 4.5

72

B GPT-5 mini

92

Reasoning Quality

A Claude Haiku 4.5

81

B GPT-5 mini

78

Specificity

A Claude Haiku 4.5

88

B GPT-5 mini

91

Structure

A Claude Haiku 4.5

87

B GPT-5 mini

88

Tone

A Claude Haiku 4.5

89

B GPT-5 mini

82

Usefulness

A Claude Haiku 4.5

67

B GPT-5 mini

83

Discussion

Clarity

A Claude Haiku 4.5

83

B GPT-5 mini

83

Instruction Following

A Claude Haiku 4.5

93

B GPT-5 mini

93

Logic

A Claude Haiku 4.5

75

B GPT-5 mini

75

Persuasiveness

A Claude Haiku 4.5

78

B GPT-5 mini

77

Rebuttal Quality

A Claude Haiku 4.5

79

B GPT-5 mini

75

Matchups With Significant Performance Gaps

Fairness / How This Comparison Was Built

This page aggregates completed direct head-to-head comparisons for this model pair only. Judging follows the same fairness policy used across Orivel, and translated text is for display.

See fairness policy

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