Gemini 3.1 Pro
gemini-3-1-pro
70% in · 30% out mix
Higher = better value
Speed
82/100
Context
2.0M
Tier
smart
GPT-4.1
gpt-4-1
70% in · 30% out mix
Higher = better value
Speed
88/100
Context
1.0M
Tier
smart
IN-DEPTH ANALYSIS
Gemini 3.1 Pro vs GPT-4.1: Detailed Comparison
Gemini 3.1 Pro is Google's mid-range-tier language model with a 2.0M-token context window, excelling at vision/multimodal. GPT-4.1 from OpenAI is a mid-range-tier model supporting 1.0M tokens in context, with standout performance in reasoning.
GPT-4.1 is the more cost-efficient option in this comparison — it costs up to 24% less than Gemini 3.1 Pro on a typical prompt/completion mix. Gemini 3.1 Pro is priced at $2.00/M input tokens and $12.00/M output tokens. GPT-4.1 costs $2.00/M input and $8.00/M output.
In independent benchmark evaluations, GPT-4.1 leads with coding scores of 91/100 and reasoning scores of 93/100, compared to Gemini 3.1 Pro's 88/100 in coding and 89/100 in reasoning.
Gemini 3.1 Pro supports the larger context window at 2.0M tokens, useful for long-document analysis and large codebases. For latency-sensitive applications, GPT-4.1 has a speed score of 88/100 versus Gemini 3.1 Pro's 82/100.
Choose GPT-4.1 when cost efficiency is the priority; opt for Gemini 3.1 Pro when maximum performance is required. GPT-4.1 holds the edge in overall benchmark scores. Both models have distinct strengths — use the interactive calculator above to model costs for your exact token volume.
Benchmark Comparison
Head-to-head scores across 5 categories — sourced from official evals
Coding
Reasoning
Extraction
Creative
Vision
Speed Score
Context Window
What Is a Token?
Models don't read words — they process tokens.
A token is roughly 4 characters of English text (~¾ of a word). Your API bill is priced per million tokens — understanding this directly reduces your costs.
Short phrase
"Hello, world!"
Business email
One typical email (~200 words)
Code file
50-line Python script
How to check your token usage
response.usage.total_tokensEvery API response includes a usage object. Sum total_tokens across all calls to get your monthly figure, then use the calculator below.
Your Cost Calculator
Enter your actual monthly token usage to see real savings
Quick Presets
Gemini 3.1 Pro
$150.00/mo
$1,800.00/yr
GPT-4.1
$114.00/mo
$1,368.00/yr
Annual Savings
$432.00 saved per year
GPT-4.1 cheaper · $36.00/mo
Deep-Dive Audit — Gemini 3.1 Pro & GPT-4.1
Surgically Auditing: Deep Logic
3-YEAR STRATEGIC LOSS PROJECTION
$265.14
Without optimization protocols, current model choices will result in $88.38 capital loss per year.
EFFICIENCY SCORE
89%
This model achieves a 89 benchmark score in this category.
CATEGORY GAP
9 pts
Distance from Leader
Competitive Landscape Analysis
Source: MMLU-Pro + GPQA Diamond (Apr 2026)
Category Champion: Claude Opus 4.6
According to MMLU-Pro + GPQA Diamond (Apr 2026) data, Claude Opus 4.6 provides the optimum balance for Deep Logic tasks.
Market Score
%98
Savings Rate
%53
Operational Prescription
- Implement model cascading to optimize token spend.
- Analyze complex_reasoning data to leverage local semantic caching.
COST_AUDIT_PROTOCOL
Overkill Detected
"Gemini 3.1 Pro is overpriced for this task type. Claude Opus 4.6 scores 98 in this category at a fraction of the cost."
Categorical Alternative Opportunity
"Claude Opus 4.6 leads this category with 98 points according to MMLU-Pro + GPQA Diamond (Apr 2026) data."
Inertia Tax Detected
"85% of traffic can be routed to cheaper models. Fast tier (DeepSeek V3) and Smart tier (o3-mini) can save $7.37/month."
3-Tier Intelligent Routing Architecture
53% SAVINGS VIA ROUTINGDeepSeek V3
IQ Score: 91/100
$30.24/yr
o3-mini
IQ Score: 97/100
$277.20/yr
Claude Opus 4.6
IQ Score: 98/100
$648.00/yr
Without tiered routing, you pay the 'Inertia Tax' — routing all traffic to the most expensive model regardless of task complexity. Tiered cascade eliminates $1,060.56/year in avoidable overhead.
Deep Logic — Model Cost / Quality Matrix
Source: MMLU-Pro + GPQA Diamond (Apr 2026)| Model | Benchmark | Input (per M) | Output (per M) | Annual Cost* | Value Index |
|---|---|---|---|---|---|
Claude Opus 4.6LEADER | 98/100 | $5.00 | $25.00 | $360.00 | 1/100 |
o3-mini | 97/100 | $1.10 | $4.40 | $66.00 | 6/100 |
DeepSeek R1 | 97/100 | $0.55 | $2.19 | $32.88 | 12/100 |
GPT-5.2 Chat | 96/100 | $1.75 | $14.00 | $189.00 | 2/100 |
Claude 3.7 Sonnet | 95/100 | $3.00 | $15.00 | $216.00 | 2/100 |
Claude 3.5 Sonnet | 93/100 | $3.00 | $15.00 | $216.00 | 2/100 |
GPT-4.1 | 93/100 | $2.00 | $8.00 | $120.00 | 3/100 |
DeepSeek V3 | 91/100 | $0.14 | $0.28 | $5.04 | 75/100 |
Claude 3 Opus | 90/100 | $15.00 | $75.00 | $1,080.00 | 0/100 |
GPT-4o | 90/100 | $2.50 | $10.00 | $150.00 | 3/100 |
Gemini 3.1 ProSELECTED | 89/100 | $2.00 | $12.00 | $168.00 | 2/100 |
Gemini 2.0 Pro | 88/100 | $1.25 | $5.00 | $75.00 | 5/100 |
Llama 3.1 405B | 88/100 | $2.70 | $2.70 | $64.80 | 6/100 |
Gemini 1.5 Pro | 87/100 | $1.25 | $5.00 | $75.00 | 5/100 |
Mistral Large 2 | 86/100 | $2.00 | $6.00 | $96.00 | 4/100 |
DeepSeek V3.2 | 83/100 | $0.26 | $0.38 | $7.68 | 45/100 |
Gemini 2.0 Flash | 81/100 | $0.10 | $0.40 | $6.00 | 56/100 |
Claude 3.5 Haiku | 80/100 | $0.80 | $4.00 | $57.60 | 6/100 |
Llama 3 70B | 79/100 | $0.65 | $2.75 | $40.80 | 8/100 |
GPT-4o Mini | 78/100 | $0.15 | $0.60 | $9.00 | 36/100 |
Gemini 1.5 Flash | 76/100 | $0.07 | $0.30 | $4.50 | 70/100 |
GPT-5 NanoBEST VALUE | 72/100 | $0.10 | $0.15 | $3.00 | 100/100 |
Claude 3 Haiku | 70/100 | $0.25 | $1.25 | $18.00 | 16/100 |
* Annual cost for given volumes. Value Index = Score / Cost (Higher = Best Value).
// iOPTERA Surgical Routing Wrapper
const auditModel = async (prompt: string) => {
const complexity = measureComplexity(prompt);
// Tactical Cascade Logic
if (complexity < 0.45) {
// Redirect simple tasks to efficient model
return await llm.call("iOPTERA Optimization", prompt);
}
// High-latency routing for complex reasoning
return await llm.call("Claude Opus 4.6", prompt);
};Related Comparisons
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