Model Comparison

GPT-5.4 vs Gemini 3.1 Flash-Lite

GPT-5.4 significantly outperforms across most benchmarks. Gemini 3.1 Flash-Lite is 10.0x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

GPT-5.4 outperforms in 3 benchmarks (GPQA, Humanity's Last Exam, MMMU-Pro), while Gemini 3.1 Flash-Lite is better at 0 benchmarks.

GPT-5.4 significantly outperforms across most benchmarks.

Fri May 01 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemini 3.1 Flash-Lite costs less

For input processing, GPT-5.4 ($2.50/1M tokens) is 10.0x more expensive than Gemini 3.1 Flash-Lite ($0.25/1M tokens).

For output processing, GPT-5.4 ($15.00/1M tokens) is 10.0x more expensive than Gemini 3.1 Flash-Lite ($1.50/1M tokens).

In conclusion, GPT-5.4 is more expensive than Gemini 3.1 Flash-Lite.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Fri May 01 2026 • llm-stats.com
OpenAI
GPT-5.4
Input tokens$2.50
Output tokens$15.00
Best providerOpenAI
Google
Gemini 3.1 Flash-Lite
Input tokens$0.25
Output tokens$1.50
Best providerGoogle
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Context Window

Maximum input and output token capacity

Both models have the same input context window of 1,000,000 tokens. GPT-5.4 can generate longer responses up to 128,000 tokens, while Gemini 3.1 Flash-Lite is limited to 65,536 tokens.

OpenAI
GPT-5.4
Input1,000,000 tokens
Output128,000 tokens
Google
Gemini 3.1 Flash-Lite
Input1,000,000 tokens
Output65,536 tokens
Fri May 01 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both GPT-5.4 and Gemini 3.1 Flash-Lite support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

GPT-5.4

Text
Images
Audio
Video

Gemini 3.1 Flash-Lite

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

GPT-5.4

Proprietary

Closed source

Gemini 3.1 Flash-Lite

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-5.4 was released on 2026-03-05, while Gemini 3.1 Flash-Lite was released on 2026-03-03.

GPT-5.4 is 0 month newer than Gemini 3.1 Flash-Lite.

GPT-5.4

Mar 5, 2026

1 months ago

2d newer
Gemini 3.1 Flash-Lite

Mar 3, 2026

1 months ago

Knowledge Cutoff

When training data ends

Gemini 3.1 Flash-Lite has a documented knowledge cutoff of 2025-01-31, while GPT-5.4's cutoff date is not specified.

We can confirm Gemini 3.1 Flash-Lite's training data extends to 2025-01-31, but cannot make a direct comparison without GPT-5.4's cutoff date.

GPT-5.4

—

Gemini 3.1 Flash-Lite

Jan 2025

Provider Availability

GPT-5.4 is available from OpenAI. Gemini 3.1 Flash-Lite is available from Google.

GPT-5.4

openai logo
OpenAI
Input Price:Input: $2.50/1MOutput Price:Output: $15.00/1M

Gemini 3.1 Flash-Lite

google logo
Google
Input Price:Input: $0.25/1MOutput Price:Output: $1.50/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

OpenAI
Higher GPQA score (92.8% vs 86.9%)
Higher Humanity's Last Exam score (39.8% vs 16.0%)
Higher MMMU-Pro score (81.2% vs 76.8%)
Google
Less expensive input tokens
Less expensive output tokens

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
GPT-5.4
Google
Gemini 3.1 Flash-Lite

FAQ

Common questions about GPT-5.4 vs Gemini 3.1 Flash-Lite

GPT-5.4 significantly outperforms across most benchmarks. GPT-5.4 is made by OpenAI and Gemini 3.1 Flash-Lite is made by Google. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
GPT-5.4 scores Tau2 Telecom: 98.9%, ARC-AGI: 93.7%, Graphwalks BFS <128k: 93.0%, GPQA: 92.8%, Graphwalks parents <128k: 89.8%. Gemini 3.1 Flash-Lite scores MMMLU: 88.9%, GPQA: 86.9%, VideoMMMU: 84.8%, MMMU-Pro: 76.8%, CharXiv-R: 73.2%.
Gemini 3.1 Flash-Lite is 10.0x cheaper for input tokens. GPT-5.4 costs $2.50/M input and $15.00/M output via openai. Gemini 3.1 Flash-Lite costs $0.25/M input and $1.50/M output via google.
GPT-5.4 supports 1.0M tokens and Gemini 3.1 Flash-Lite supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include input pricing ($2.50 vs $0.25/M). See the full comparison above for benchmark-by-benchmark results.
GPT-5.4 is developed by OpenAI and Gemini 3.1 Flash-Lite is developed by Google.