| Signal | Gemini 3.1 Pro Preview | Delta | Gemini 3.1 Pro Preview Custom Tools |
|---|---|---|---|
Capabilities | 83 | -- | |
Benchmarks | 79 | -- | |
Pricing | 88 | -- | |
Context window size | 96 | -- | |
Recency | 100 | -- | |
Output Capacity | 80 | -- | |
| Overall Result | 0 wins | of 6 | 0 wins |
Score History
80.2
current score
Tied
right now
80.2
current score
| Metric | Gemini 3.1 Pro Preview | Gemini 3.1 Pro Preview Custom Tools | Winner |
|---|---|---|---|
| Overall Score | 80 | 80 | -- |
| Rank | #35 | #34 | Gemini 3.1 Pro Preview Custom Tools |
| Quality Rank | #35 | #34 | Gemini 3.1 Pro Preview Custom Tools |
| Adoption Rank | #35 | #34 | Gemini 3.1 Pro Preview Custom Tools |
| Parameters | -- | -- | -- |
| Context Window | 1049K | 1049K | -- |
| Pricing | $2.00/$12.00/M | $2.00/$12.00/M | -- |
| Signal Scores | |||
| Capabilities | 83 | 83 | Gemini 3.1 Pro Preview |
| Benchmarks | 79 | 79 | Gemini 3.1 Pro Preview |
| Pricing | 88 | 88 | Gemini 3.1 Pro Preview |
| Context window size | 96 | 96 | Gemini 3.1 Pro Preview |
| Recency | 100 | 100 | Gemini 3.1 Pro Preview |
| Output Capacity | 80 | 80 | Gemini 3.1 Pro Preview |
Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.
Scores 80/100 (rank #35), placing it in the top 88% of all 290 models tracked.
Scores 80/100 (rank #34), placing it in the top 89% of all 290 models tracked.
With only a 0-point gap, these models are in the same performance tier. The practical difference in output quality is minimal - your choice should depend on pricing, latency requirements, and specific feature needs.
Both models are priced similarly, so the decision comes down to quality and features rather than cost.
Both models have comparable response speeds. For most applications, the latency difference is negligible.
When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.
Code generation & review
Higher benchmark score (0/100) indicates stronger performance on coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Faster response time (speed score 0/100) is critical for user-facing chat. Gemini 3.1 Pro Preview also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (1049K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($12.00/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (80/100) correlates with better nuance, coherence, and style in long-form content
Image understanding & OCR
Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly
Gemini 3.1 Pro Preview and Gemini 3.1 Pro Preview Custom Tools are extremely close in overall performance (only 0 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.
Best for Quality
Gemini 3.1 Pro Preview
Marginally better benchmark scores; both are excellent
Best for Cost
Gemini 3.1 Pro Preview
0% lower pricing; better value at scale
Best for Reliability
Gemini 3.1 Pro Preview
Higher uptime and faster response speeds
Best for Prototyping
Gemini 3.1 Pro Preview
Stronger community support and better developer experience
Best for Production
Gemini 3.1 Pro Preview
Wider enterprise adoption and proven at scale
by Google
| Capability | Gemini 3.1 Pro Preview | Gemini 3.1 Pro Preview Custom Tools |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Search | ||
| Image Output |
Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.
| Parameter | Gemini 3.1 Pro Preview | Gemini 3.1 Pro Preview Custom Tools |
|---|---|---|
| Context Window | 1.0M | 1.0M |
| Max Output Tokens | 65,536 | 65,536 |
| Open Source | No | No |
| Created | Feb 19, 2026 | Feb 25, 2026 |
Both Gemini 3.1 Pro Preview and Gemini 3.1 Pro Preview Custom Tools score 80/100, making them extremely close competitors. Choose based on pricing, provider ecosystem, or specific capability requirements.
Gemini 3.1 Pro Preview is ranked #35 and Gemini 3.1 Pro Preview Custom Tools is ranked #34 out of 290+ AI models. Rankings use a composite score combining benchmark performance (90%) from MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations, with capabilities and context window as tiebreakers (10%). Scores update hourly.
Gemini 3.1 Pro Preview is cheaper at $12.00/M output tokens vs Gemini 3.1 Pro Preview Custom Tools's $12.00/M output tokens - 1.0x more expensive. Input token pricing: Gemini 3.1 Pro Preview at $2.00/M vs Gemini 3.1 Pro Preview Custom Tools at $2.00/M.
Gemini 3.1 Pro Preview has a larger context window of 1,048,576 tokens compared to Gemini 3.1 Pro Preview Custom Tools's 1,048,576 tokens. A larger context window means the model can process longer documents and conversations.