Which model is better: Gemini 3.5 Flash-Lite or o1?
Gemini 3.5 Flash-Lite is 99.5% cheaper for input tokens ($0.07 vs. $15.00 per 1M tokens) and $0.30 vs. $60.00 for output tokens (200.0x cost advantage). In terms of operational performance, Gemini 3.5 Flash-Lite delivers lower response latency at 78ms TTFT (2522ms faster than o1) with 265 vs. 48 tok/s throughput. Gemini 3.5 Flash-Lite leads coding evaluations at 55.4% SWE-bench Verified vs. 48.9% for o1 and 68.4% vs. 78.0% on GPQA Diamond.
Verified daily via automated API latency tests and official documentation.
Zero-Shot RAG Verified
Verified Performance & Unit Economics Delta (12 Dimensions)
Daily synchronized metrics across token pricing, prompt cache economics, latency, throughput, and 5 capability benchmarks.
Metric / Dimension
Gemini 3.5 Flash-Lite
o1
Net Delta / Advantage
Input Cost / 1M Tokens
$0.07
$15.00
Gemini 3.5 Flash-Lite is 200.0x cheaper
Output Cost / 1M Tokens
$0.30
$60.00
Gemini 3.5 Flash-Lite (99.5% lower)
Prompt Cache Read / 1M
$0.015
$7.500
Gemini 3.5 Flash-Lite is 500.0x cheaper
Prompt Cache Write / 1M
$0.07
$15.00
Gemini 3.5 Flash-Lite is 200.0x cheaper
Context Window (Max Output)
1,049k (33k out)
205k (100k out)
Gemini 3.5 Flash-Lite (5.1x larger context)
Avg TTFT Response Latency
78ms
2600ms
Gemini 3.5 Flash-Lite (2522ms faster)
Generation Speed (Throughput)
265 tok/s
48 tok/s
Gemini 3.5 Flash-Lite (+217 tok/s faster)
SWE-bench Verified (Coding)
55.4%
48.9%
Gemini 3.5 Flash-Lite (+6.5% lead)
GPQA Diamond (PhD STEM)
68.4%
78%
o1 (+9.6% lead)
MMLU-Pro (Multi-Discipline)
80.1%
83.3%
o1 (+3.2% lead)
MATH-500 (Quantitative Logic)
90.2%
96.4%
o1 (+6.2% lead)
Inference Value Score (IVR)
81.5 / 100
37.2 / 100
Gemini 3.5 Flash-Lite (+44.3 pts)
Interactive Monthly Token Economics & ROI Forecaster
Model production workloads across prompt, completion, and cached context tokens, or switch models on the fly.
Gemini 3.5 Flash-Lite is cheaper at $0.075/1M input tokens ($0.30/1M output) compared to $15.00/1M input ($60.00/1M output) for o1.
Which model has lower TTFT latency and higher tok/s throughput: Gemini 3.5 Flash-Lite or o1?
Gemini 3.5 Flash-Lite delivers faster first-token latency at 78ms TTFT (265 tok/s throughput) compared to 2600ms TTFT (48 tok/s) for o1.
How do Gemini 3.5 Flash-Lite and o1 compare on SWE-bench coding and GPQA Diamond reasoning?
On SWE-bench Verified software engineering, Gemini 3.5 Flash-Lite scores 55.4% versus 48.9% for o1. On GPQA Diamond graduate-level STEM reasoning, Gemini 3.5 Flash-Lite scores 68.4% versus 78% for o1 (and 90.2% vs 96.4% on MATH-500).
When should you choose Gemini 3.5 Flash-Lite?
Choose Gemini 3.5 Flash-Lite (Google) for high-frequency data pipelines, real-time routing, large-scale document tagging, and ultra-low-cost conversational assistants — offering a 1,048k context window, 78ms TTFT, and $0.07/1M input pricing ($0.015/1M cached reads).
When should you choose o1?
Choose o1 (OpenAI) for legacy reasoning benchmarks, scientific literature review, and complex mathematical proofs — offering a 204k context window, 2600ms TTFT, and $15.00/1M input pricing ($7.500/1M cached reads).
