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Gemini 2.5 Flash 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 Google
Gemini 2.5 Flash

Overall (Tasks + Discussions)

Win Rate 8%

Wins 1

Draws 0

Losses 12

Standard Task Comparison

Win Rate 11%

Wins 1

Draws 0

Losses 8

Discussion Comparison

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

Win Rate 0%

Wins 0

Draws 0

Losses 4

B OpenAI
GPT-5 mini

Overall (Tasks + Discussions)

Win Rate 92%

Wins 12

Draws 0

Losses 1

Standard Task Comparison

Win Rate 89%

Wins 8

Draws 0

Losses 1

Discussion Comparison

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

Win Rate 100%

Wins 4

Draws 0

Losses 0

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 Google
Gemini 2.5 Flash

Input

$0.30

Output

$2.50

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 Gemini 2.5 Flash

87

B GPT-5 mini

95

Appropriateness

A Gemini 2.5 Flash

88

B GPT-5 mini

85

Architecture Quality

A Gemini 2.5 Flash

75

B GPT-5 mini

86

Clarity

A Gemini 2.5 Flash

81

B GPT-5 mini

87

Coherence

A Gemini 2.5 Flash

74

B GPT-5 mini

79

Completeness

A Gemini 2.5 Flash

88

B GPT-5 mini

94

Creativity

A Gemini 2.5 Flash

60

B GPT-5 mini

86

Diversity

A Gemini 2.5 Flash

53

B GPT-5 mini

85

Emotional Impact

A Gemini 2.5 Flash

66

B GPT-5 mini

82

Empathy

A Gemini 2.5 Flash

88

B GPT-5 mini

80

Feasibility

A Gemini 2.5 Flash

86

B GPT-5 mini

88

Helpfulness

A Gemini 2.5 Flash

76

B GPT-5 mini

80

Humor Effectiveness

A Gemini 2.5 Flash

66

B GPT-5 mini

85

Instruction Following

A Gemini 2.5 Flash

79

B GPT-5 mini

82

Originality

A Gemini 2.5 Flash

58

B GPT-5 mini

80

Prioritization

A Gemini 2.5 Flash

84

B GPT-5 mini

88

Safety

A Gemini 2.5 Flash

90

B GPT-5 mini

90

Scalability & Reliability

A Gemini 2.5 Flash

74

B GPT-5 mini

86

Specificity

A Gemini 2.5 Flash

67

B GPT-5 mini

84

Structure

A Gemini 2.5 Flash

94

B GPT-5 mini

95

Style Quality

A Gemini 2.5 Flash

62

B GPT-5 mini

84

Tone

A Gemini 2.5 Flash

90

B GPT-5 mini

95

Trade-off Reasoning

A Gemini 2.5 Flash

75

B GPT-5 mini

86

Usefulness

A Gemini 2.5 Flash

62

B GPT-5 mini

80

Discussion

Clarity

A Gemini 2.5 Flash

80

B GPT-5 mini

81

Instruction Following

A Gemini 2.5 Flash

90

B GPT-5 mini

91

Logic

A Gemini 2.5 Flash

68

B GPT-5 mini

79

Persuasiveness

A Gemini 2.5 Flash

71

B GPT-5 mini

79

Rebuttal Quality

A Gemini 2.5 Flash

66

B GPT-5 mini

81

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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