| Signal | Gemini 2.5 Pro Preview 05-06 | Delta | GPT-5.1 Chat |
|---|---|---|---|
Capabilities | 100 | +17 | |
Benchmarks | 80 | -9 | |
Pricing | 90 | -- | |
Context window size | 96 | +14 | |
Recency | 66 | -34 | |
Output Capacity | 80 | +10 | |
| Overall Result | 3 wins | of 6 | 2 wins |
Score History
83.5
current score
GPT-5.1 Chat
right now
86.6
current score
OpenAI
| Metric | Gemini 2.5 Pro Preview 05-06 | GPT-5.1 Chat | Winner |
|---|---|---|---|
| Overall Score | 84 | 87 | GPT-5.1 Chat |
| Rank | #29 | #24 | GPT-5.1 Chat |
| Quality Rank | #29 | #24 | GPT-5.1 Chat |
| Adoption Rank | #29 | #24 | GPT-5.1 Chat |
| Parameters | -- | -- | -- |
| Context Window | 1049K | 128K | Gemini 2.5 Pro Preview 05-06 |
| Pricing | $1.25/$10.00/M | $1.25/$10.00/M | -- |
| Signal Scores | |||
| Capabilities | 100 | 83 | Gemini 2.5 Pro Preview 05-06 |
| Benchmarks | 80 | 88 | GPT-5.1 Chat |
| Pricing | 90 | 90 | Gemini 2.5 Pro Preview 05-06 |
| Context window size | 96 | 81 | Gemini 2.5 Pro Preview 05-06 |
| Recency | 66 | 100 | GPT-5.1 Chat |
| Output Capacity | 80 | 70 | Gemini 2.5 Pro Preview 05-06 |
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 84/100 (rank #29), placing it in the top 90% of all 290 models tracked.
Scores 87/100 (rank #24), placing it in the top 92% of all 290 models tracked.
With only a 3-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
Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Suitable for user-facing chat with competitive response times. Gemini 2.5 Pro Preview 05-06 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 ($10.00/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (87/100) 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
GPT-5.1 Chat has a moderate advantage with a 3.0999999999999943-point lead in composite score. It wins on more signal dimensions, but Gemini 2.5 Pro Preview 05-06 has specific strengths that could make it the better choice for certain workflows.
Best for Quality
Gemini 2.5 Pro Preview 05-06
Marginally better benchmark scores; both are excellent
Best for Cost
Gemini 2.5 Pro Preview 05-06
0% lower pricing; better value at scale
Best for Reliability
Gemini 2.5 Pro Preview 05-06
Higher uptime and faster response speeds
Best for Prototyping
Gemini 2.5 Pro Preview 05-06
Stronger community support and better developer experience
Best for Production
Gemini 2.5 Pro Preview 05-06
Wider enterprise adoption and proven at scale
by Google
| Capability | Gemini 2.5 Pro Preview 05-06 | GPT-5.1 Chat |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoningdiffers | ||
| Web Search | ||
| Image Output |
OpenAI
Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.
| Parameter | Gemini 2.5 Pro Preview 05-06 | GPT-5.1 Chat |
|---|---|---|
| Context Window | 1.0M | 128K |
| Max Output Tokens | 65,535 | 16,384 |
| Open Source | No | No |
| Created | May 7, 2025 | Nov 13, 2025 |