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GPT-5.4 vs Gemini 3.1 Pro — Mid-Tier AI Pricing

Gemini 3.1 Pro is 20% cheaper on input and output with 2.5x more context. Compare the mid-tier OpenAI and Google models side by side.

Pricing data verified: Jun 27, 2026

Cheapest Input
Gemini 3.1 Pro
$2.00 vs $2.50 per 1M tokens
Best Context
Gemini 3.1 Pro
1M vs 400K tokens
Best Value
Gemini 3.1 Pro
20% cheaper input & output

All Mid-Tier Models Compared

The mid-tier AI models from major providers, ranked by input price.

ModelProviderTierInput (per 1M)Output (per 1M)Context
Gemini 2.5 Pro Google Mid $1.25 $10.00 1M
Gemini 3.1 Pro Google Mid $2.00 $12.00 1M
GPT-5.4 OpenAI Mid $2.50 $15.00 400K
Claude Sonnet 4.6 Anthropic Mid $3.00 $15.00 1M
GPT-4o OpenAI Mid $2.50 $10.00 128K

Calculate Your Exact Costs

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vs
OpenAI
GPT-5.4
$0.00
per month
Input cost$0.00
Output cost$0.00
Per request$0.00
Google
Gemini 3.1 Pro
$0.00
per month
Input cost$0.00
Output cost$0.00
Per request$0.00
Enter your usage above to see savings.

Which Should You Choose?

Chatbot / Customer Support

High volume, short responses. Cost per message matters most.

Pick Gemini 3.1 Pro: At $2.00/$12.00 it's 20% cheaper on both input and output. At 1M requests/month: $140 vs $175.

Code Generation

Complex reasoning, longer outputs. Quality and accuracy matter.

Pick Gemini 3.1 Pro: 20% cheaper with 2.5x more context (1M vs 400K). Better for large codebases and multi-file reasoning.

Long Document Analysis

Processing large documents, legal contracts, or codebases.

Pick Gemini 3.1 Pro: 1M context (2.5x more than GPT-5.4's 400K). Essential for large-scale document analysis.

OpenAI Ecosystem

Deep integration with OpenAI's function calling, fine-tuning, and Assistants API.

Pick GPT-5.4: Better integration with OpenAI's ecosystem. If you're already using OpenAI tools, the migration cost may outweigh the 20% savings.

Creative Writing

Long-form content, nuanced storytelling, and tasks requiring superior style.

Pick Gemini 3.1 Pro: 20% cheaper with larger context for maintaining consistency across long-form content.

Enterprise / Cost-Sensitive

High-volume deployments where cost efficiency is paramount.

Pick Gemini 3.1 Pro: 20% input savings ($0.50/1M tokens) adds up significantly at enterprise scale. Same output price.

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Frequently Asked Questions

Is GPT-5.4 or Gemini 3.1 Pro cheaper?

Gemini 3.1 Pro is cheaper. It costs $2.00/$12.00 per 1M tokens while GPT-5.4 costs $2.50/$15.00. That's 20% cheaper on input and 20% cheaper on output. At 1M tokens/month, Gemini 3.1 Pro costs $140 vs GPT-5.4's $175 — saving $35/month.

Which is better for coding: GPT-5.4 or Gemini 3.1 Pro?

Both are excellent for coding. Gemini 3.1 Pro at $2.00 input is 20% cheaper with a 1M context window (2.5x more than GPT-5.4's 400K). GPT-5.4 has strong OpenAI ecosystem integration. Choose Gemini 3.1 Pro for cost-efficiency and large context, GPT-5.4 for OpenAI tooling compatibility.

What is the context window difference between GPT-5.4 and Gemini 3.1 Pro?

GPT-5.4 has a 400K token context window, while Gemini 3.1 Pro has a 1M token context window. Gemini 3.1 Pro supports 2.5x more context, which is important for long document analysis, large codebases, and complex multi-step reasoning tasks.

GPT-5.4 vs Gemini 3.1 Pro for enterprise?

For enterprise use, Gemini 3.1 Pro offers better value at 20% lower input cost ($2.00 vs $2.50) with a larger 1M context window. GPT-5.4 integrates better with OpenAI's ecosystem. Choose Gemini 3.1 Pro for cost-sensitive deployments, GPT-5.4 for OpenAI-native workflows.

Is GPT-5.4 worth more than Gemini 3.1 Pro?

GPT-5.4 is worth the premium for teams deeply invested in OpenAI's ecosystem (function calling, fine-tuning, Assistants API). For general-purpose tasks, Gemini 3.1 Pro at 20% lower cost with 2.5x more context provides better raw value.

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