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Claude Sonnet 5 vs GPT-5.5 Comparison & Evaluation

Claude Sonnet 5 vs GPT-5.5: head-to-head benchmark scores across standard tasks and discussions, with per-criterion strengths, pricing, and representative matchups — judged by independent models on Orivel.

Compare Performance by Model

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

A Anthropic
Claude Sonnet 5

Overall (Tasks + Discussions)

Win Rate 0%

Wins 0

Draws 0

Losses 1

Standard Task Comparison

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

Win Rate 0%

Wins 0

Draws 0

Losses 1

Discussion Comparison

No completed direct comparisons are available for this model pair yet.

Win Rate -

Wins 0

Draws 0

Losses 0

B OpenAI
GPT-5.5

Overall (Tasks + Discussions)

Win Rate 100%

Wins 1

Draws 0

Losses 0

Standard Task Comparison

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

Win Rate 100%

Wins 1

Draws 0

Losses 0

Discussion Comparison

No completed direct comparisons are available for this model pair yet.

Win Rate -

Wins 0

Draws 0

Losses 0

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

Key Takeaways From the Data

Across 1 head-to-head sessions, GPT-5.5 leads with a 100% win rate (1–0, 0 draws).

By criterion, Claude Sonnet 5 is strongest on Clarity (8.87), while GPT-5.5's edge is Helpfulness (9.07).

On list price, Claude Sonnet 5 is the cheaper option at $3.00 input / $15.00 output per 1M tokens.

Bottom line: GPT-5.5 is the stronger overall pick on this data, while Claude Sonnet 5 is the better value if price is the priority.

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 Sonnet 5

Input

$3.00

Output

$15.00

Source: Official pricing

Last checked: 2026-07-25

B OpenAI
GPT-5.5

Input

$5.00

Output

$30.00

Source: Official pricing

Last checked: 2026-04-25

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

Appropriateness

A Claude Sonnet 5

88

B GPT-5.5

90

Clarity

A Claude Sonnet 5

89

B GPT-5.5

88

Empathy

A Claude Sonnet 5

89

B GPT-5.5

91

Helpfulness

A Claude Sonnet 5

87

B GPT-5.5

91

Safety

A Claude Sonnet 5

89

B GPT-5.5

92

Discussion

No Ranking Data Yet

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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