Gemini 1.0 Ultra vs Gemini 3.1 Pro Preview: Which AI Model Is Better?

Updated March 26, 2026· Based on independent benchmark data

Quick Verdict

Gemini 3.1 Pro Preview leads in intelligence with a score of 57.2 vs 10.1. For speed, Gemini 3.1 Pro Preview wins at 113 tok/s vs 0 tok/s.

Head-to-Head Comparison

Metric	Gemini 1.0 Ultra	Gemini 3.1 Pro Preview
Intelligence Score	10.1	57.2
Coding Score	17.6	55.5
Math Score	N/A	N/A
Speed (tok/s)	0 tok/s	113 tok/s
Latency (TTFT)	0.00s	23.84s
Input Price / 1M tokens	Free	$2.00
Output Price / 1M tokens	Free	$12
Context Window	N/A	1.0M
Max Output Tokens	N/A	N/A
Input Modalities	Text	Audio + File + Image + Text + Video

Detailed Analysis

Intelligence & Quality

Gemini 3.1 Pro Preview outperforms Gemini 1.0 Ultra on the intelligence index with a score of 57.2 compared to 10.1. For coding tasks, Gemini 3.1 Pro Preview has the edge with a coding score of 55.5 vs 17.6.

Speed & Latency

Gemini 3.1 Pro Preview generates output significantly faster at 113 tok/s compared to Gemini 1.0 Ultra's 0 tok/s, making it Infinityx faster for streaming responses. Time to first token is 0.00s for Gemini 1.0 Ultra vs 23.84s for Gemini 3.1 Pro Preview, which affects perceived responsiveness in interactive applications.

Pricing

Gemini 1.0 Ultra is completely free, while Gemini 3.1 Pro Preview costs $2.00/1M input tokens and $12/1M output tokens.

Best Use Cases

Choose Gemini 3.1 Pro Preview when you need higher intelligence (57.2), stronger coding performance (55.5), faster output (113 tok/s).

Choose Gemini 1.0 Ultra if:

✓You want lower latency (0.00s vs 23.84s TTFT)
✓You want zero cost (Free vs paid)

Choose Gemini 3.1 Pro Preview if:

✓You need higher intelligence (score: 57.2 vs 10.1)
✓You prioritize coding performance (score: 55.5 vs 17.6)
✓You need faster throughput (113 tok/s vs 0 tok/s)
✓You need image understanding (Supports image input)

Frequently Asked Questions

Is Gemini 1.0 Ultra better than Gemini 3.1 Pro Preview for coding?

Gemini 3.1 Pro Preview scores higher on coding benchmarks (55.5 vs 17.6), making it the better choice for programming tasks.

Is Gemini 1.0 Ultra faster than Gemini 3.1 Pro Preview?

Gemini 3.1 Pro Preview is faster, producing output at 113 tok/s compared to Gemini 1.0 Ultra's 0 tok/s.

Can Gemini 1.0 Ultra process images?

No, Gemini 1.0 Ultra does not support image input. However, Gemini 3.1 Pro Preview does support images.

Should I use Gemini 1.0 Ultra or Gemini 3.1 Pro Preview?

It depends on your priorities. Gemini 3.1 Pro Preview scores higher on intelligence (57.2), but Gemini 1.0 Ultra may be better for specific use cases like cost savings or speed-critical applications.

Related Comparisons

gemini 1 0 ultra vs GPT-5.4 (xhigh)gemini 3 1 pro preview vs GPT-5.4 (xhigh)gemini 1 0 ultra vs GPT-5.3 Codex (xhigh)gemini 3 1 pro preview vs GPT-5.3 Codex (xhigh)gemini 3 1 pro preview vs Claude Opus 4.6 (Adaptive Reasoning, Max Effort)gemini 3 1 pro preview vs Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort)

View Gemini 1.0 Ultradetails →View Gemini 3.1 Pro Previewdetails →Full pricing comparison →

Data last synced: March 26, 2026