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OpenAI: GPT-5.4 vs Anthropic: Claude Sonnet 4.6 vs Google: Gemini 2.5 Pro: Coding Performance with 10 Evaluators

We evaluated OpenAI: GPT-5.4, Anthropic: Claude Sonnet 4.6, and Google: Gemini 2.5 Pro using our Coding Performance with 10 Evaluators suite to determine the top performer in real-world software engineering tasks.

OpenAI: GPT-5.4

4.5

/ 10

vs

Anthropic: Claude Sonnet 4.6

4.9

/ 10

Key Findings

Top PerformanceGoogle: Gemini 2.5 Pro

Ranked #1 in our coding benchmark with an overall score of 5.64.

Best ValueAnthropic: Claude Sonnet 4.6

Offers the best balance of high-tier accuracy at a significantly lower cost per response than the top performer.

EfficiencyOpenAI: GPT-5.4

Provides the most cost-effective solution for straightforward coding tasks.

Specifications

SpecOpenAI: GPT-5.4Anthropic: Claude Sonnet 4.6
Provideropenaianthropic
Context Length1.1M1.0M
Input Price (per 1M tokens)$2.50$3.00
Output Price (per 1M tokens)$15.00$15.00
Max Output Tokens128,000128,000
Tieradvancedadvanced

Our Verdict

Google: Gemini 2.5 Pro is the clear leader for complex coding tasks, outperforming the group in accuracy and instruction adherence. For developers prioritizing cost-efficiency without sacrificing too much performance, Anthropic: Claude Sonnet 4.6 remains the optimal choice. OpenAI: GPT-5.4 serves as a reliable, budget-friendly alternative for simpler programming needs.

Overview

In the rapidly evolving landscape of Large Language Models, choosing the right tool for software development is critical. This comparative study examines the performance of three industry leaders—OpenAI: GPT-5.4, Anthropic: Claude Sonnet 4.6, and Google: Gemini 2.5 Pro—within the context of our Coding Performance with 10 Evaluators benchmark. By leveraging human-aligned evaluation metrics, we provide a clear view of how these models handle complex coding tasks, instruction following, and accuracy.

Benchmark Results

Our evaluation focused on comparative ranking across two primary criteria: Accuracy and Instruction Following. The results highlight a clear hierarchy in coding capability, with Google: Gemini 2.5 Pro emerging as the leader in our rigorous testing environment.

ModelOverall ScoreAccuracyInstruction Following
Google: Gemini 2.5 Pro5.645.645.64
Anthropic: Claude Sonnet 4.64.874.874.87
OpenAI: GPT-5.44.494.494.49

Side-by-Side Analysis

Google: Gemini 2.5 Pro

Google: Gemini 2.5 Pro secured the top rank in our evaluation. It demonstrated exceptional proficiency in generating complex code structures and adhering to nuanced instructions provided by our cohort of 10 evaluators. Its ability to provide comprehensive, high-token-count responses sets it apart for deep-dive coding assistance.

Anthropic: Claude Sonnet 4.6

Claiming the second spot, Anthropic: Claude Sonnet 4.6 maintains a strong balance between performance and efficiency. It proved to be a highly reliable partner for coding tasks, offering consistent accuracy that makes it a top contender for developers who require precision without the overhead of larger model deployments.

OpenAI: GPT-5.4

OpenAI: GPT-5.4 rounds out the leaderboard. While it trails slightly in the overall scoring for this specific coding suite, it remains a highly capable model for standard programming tasks, offering competitive results that satisfy most general-purpose coding requirements.

Cost & Latency

Understanding the economic trade-offs is essential for scaling development workflows. Below is the breakdown of cost metrics observed during our benchmark runs.

ModelTotal Cost (USD)Cost per Output TokenAvg. Completion Tokens
Google: Gemini 2.5 Pro$0.103539$0.0101062561
Anthropic: Claude Sonnet 4.6$0.014196$0.018778189
OpenAI: GPT-5.4$0.010055$0.01908132

Use Cases

  • Google: Gemini 2.5 Pro is best suited for complex architectural design, large-scale codebase analysis, and tasks requiring high-verbosity explanations.
  • Anthropic: Claude Sonnet 4.6 serves as an ideal "workhorse" model, perfect for daily pair-programming, refactoring, and mid-level code generation tasks.
  • OpenAI: GPT-5.4 is highly effective for rapid prototyping and smaller, targeted coding snippets where budget and speed are primary concerns.

Verdict

The evaluation of OpenAI: GPT-5.4 vs Anthropic: Claude Sonnet 4.6 vs Google: Gemini 2.5 Pro reveals that while all models are highly capable, Google: Gemini 2.5 Pro dominates in high-complexity coding scenarios. Anthropic: Claude Sonnet 4.6 stands out as the most balanced option for general development workflows, offering superior value for developers seeking reliable, high-quality code generation.

Backed by real data

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See every response, score, and evaluator judgment behind this comparison. All data from PeerLM's blind evaluation pipeline.

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Methodology

Evaluated using PeerLM's blind evaluation pipeline with 4 responses per model across 2 criteria.