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Google

Gemini 2.5 Pro

VS
OpenAI

GPT-5.4 Pro

✍️ Analysis by:the whichllmmodel Editorial Team|📅 Updated: June 2026

Decision Recommendation

⚖️ Editorial Verdict: In our analysis, Gemini 2.5 Pro is the premium intelligence choice, scoring 0.0% higher on coding benchmarks. However, this accuracy premium comes with a cost overhead: GPT-5.4 Pro is 25.0x cheaper to run and delivers 1.2x faster throughput. If you are building high-volume, simple chatbots or processing massive amounts of text where budget is critical, GPT-5.4 Pro offers excellent cost savings. For agentic reasoning, code refactoring, or complex logical tasks, the accuracy premium of Gemini 2.5 Pro fully justifies the cost.

Model Specs

Gemini 2.5 Pro

Benchmarks & Scores

Coding (swe-bench-pro)
N/A
Reasoning (gpqa-diamond)Winner (+16.8%)
84.4%

Cost & Performance

Cost (per 1M tokens)
$3.44Input: $1.25 | Output: $10.00
Speed
117 tps
Context WindowLarger
1M tokens
Model Specs

GPT-5.4 Pro

Benchmarks & Scores

Coding (swe-bench-pro)
N/A
Reasoning (gpqa-diamond)
67.6%

Cost & Performance

Cost (per 1M tokens)25.0x cheaper
$0.14Input: $0.05 | Output: $0.40
Speed1.2x faster
137 tps
Context Window
400k tokens
Read our data collection methodology

Frequently Asked Questions

GPT-5.4 Pro is cheaper than Gemini 2.5 Pro. GPT-5.4 Pro has a blended cost of $0.14/1M tokens, which is about 25.0x cheaper than Gemini 2.5 Pro at $3.44/1M tokens.

GPT-5.4 Pro is faster than Gemini 2.5 Pro. GPT-5.4 Pro generates 137 tokens per second (tps) compared to Gemini 2.5 Pro which generates 117 tokens per second.

Coding benchmark scores are not currently recorded for these models.

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