Gemini 2.5 Pro Preview 05-06 vs GPT-5.3 Chat
| Signal | Gemini 2.5 Pro Preview 05-06 | Delta | GPT-5.3 Chat |
|---|---|---|---|
Capabilities | 100 | +17 | |
Benchmarks | 80 | -8 | |
Pricing | 90 | +4 | |
Context window size | 96 | +14 | |
Recency | 49 | -51 | |
Output Capacity | 80 | +10 | |
| Overall Result | 4 wins | of 6 | 2 wins |
Score History
83.5
current score
GPT-5.3 Chat
right now
90.5
current score
Gemini 2.5 Pro Preview 05-06
GPT-5.3 Chat
OpenAI
Gemini 2.5 Pro Preview 05-06 saves you $250.00/month
That's $3000.00/year compared to GPT-5.3 Chat at your current usage level of 100K calls/month.
| Metric | Gemini 2.5 Pro Preview 05-06 | GPT-5.3 Chat | Winner |
|---|---|---|---|
| Overall Score | 84 | 91 | GPT-5.3 Chat |
| Rank | #73 | #22 | GPT-5.3 Chat |
| Quality Rank | #73 | #22 | GPT-5.3 Chat |
| Adoption Rank | #73 | #22 | GPT-5.3 Chat |
| Parameters | -- | -- | -- |
| Context Window | 1049K | 128K | Gemini 2.5 Pro Preview 05-06 |
| Pricing | $1.25/$10.00/M | $1.75/$14.00/M | -- |
| Signal Scores | |||
| Capabilities | 100 | 83 | Gemini 2.5 Pro Preview 05-06 |
| Benchmarks | 80 | 88 | GPT-5.3 Chat |
| Pricing | 90 | 86 | Gemini 2.5 Pro Preview 05-06 |
| Context window size | 96 | 81 | Gemini 2.5 Pro Preview 05-06 |
| Recency | 49 | 100 | GPT-5.3 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 #73), placing it in the top 75% of all 290 models tracked.
Scores 91/100 (rank #22), placing it in the top 93% of all 290 models tracked.
GPT-5.3 Chat has a 7-point advantage, which typically translates to noticeably better performance on complex reasoning, code generation, and multi-step tasks.
Choose Gemini 2.5 Pro Preview 05-06 when you need:
- Processing long documents or large codebases (1049K token context)
- Step-by-step reasoning and chain-of-thought problem solving
Choose GPT-5.3 Chat when you need:
- General-purpose tasks across coding, writing, and analysis
Gemini 2.5 Pro Preview 05-06 offers 29% better value per quality point. At 1M tokens/day, you'd spend $168.75/month with Gemini 2.5 Pro Preview 05-06 vs $236.25/month with GPT-5.3 Chat - a $67.50 monthly difference.
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 (91/100) 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-5.3 Chat has a moderate advantage with a 7-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.
By Use Case
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
29% 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
- Choose for Quality - Marginally better benchmark scores; both are excellent
- Choose for Cost - 29% lower pricing; better value at scale
- Choose for Reliability - Higher uptime and faster response speeds
- Choose for Prototyping - Stronger community support and better developer experience
- Choose for Production - Wider enterprise adoption and proven at scale
| Capability | Gemini 2.5 Pro Preview 05-06 | GPT-5.3 Chat |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoningdiffers | ||
| Web Search | ||
| Image Output |
Gemini 2.5 Pro Preview 05-06
GPT-5.3 Chat
OpenAI
Gemini 2.5 Pro Preview 05-06 saves you $5.70/month
That's 29% cheaper than GPT-5.3 Chat at 1,000 tokens/request and 100 requests/day.
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-5.3 Chat |
|---|---|---|
| Context Window | 1.0M | 128K |
| Max Output Tokens | 65,535 | 16,384 |
| Open Source | No | No |
| Created | May 7, 2025 | Mar 3, 2026 |