AI Models · Compare
GPT-5.5 mini vs Gemini 2.0 Flash
Side-by-side intelligence, speed, price, benchmarks, strengths and weaknesses for GPT-5.5 mini and Gemini 2.0 Flash — refreshed monthly.
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GPT-5.5 mini
ProprietaryMar 2026
Production workhorse — GPT-5.5 quality reasoning at fast-tier prices.
Google
Gemini 2.0 Flash
ProprietaryFeb 2025
1M-token context for pennies — the best $/token deal on the market.
Head to head
Spec
GPT-5.5 mini
Gemini 2.0 Flash
Intelligence index↑ better
Winner68
64
Speed↑ better
180 tok/s
Winner220 tok/s
Time to first token↓ better
Winner0.28 s
0.3 s
Context window↑ better
400k
Winner1M
Max output↑ better
Winner16k
8k
Input price↓ better
$0.25 / 1M tokens
Winner$0.10 / 1M tokens
Output price↓ better
$1.00 / 1M tokens
Winner$0.40 / 1M tokens
Blended price↓ better
$0.44 / 1M tokens
Winner$0.18 / 1M tokens
License
Proprietary
Proprietary
Input modalities
text, image
text, image, audio, video
Output modalities
text
text
Benchmark showdown
MMLU
GPT-5.5 mini
82.5
Gemini 2.0 Flash
85.0
MMLU Pro
GPT-5.5 mini
65.0
Gemini 2.0 Flash
70.0
GPQA
GPT-5.5 mini
44.0
Gemini 2.0 Flash
49.5
MATH
GPT-5.5 mini
76.0
Gemini 2.0 Flash
84.0
HumanEval
GPT-5.5 mini
84.0
Gemini 2.0 Flash
86.0
Strengths, weaknesses and best-for
GPT-5.5 mini
Strengths
- Best $/token in OpenAI lineup
- Very fast
- 400k context
Weaknesses
- Weaker on hard reasoning vs full GPT-5.5
Best for
- High-volume APIs
- Chatbots
- Classification & extraction
Gemini 2.0 Flash
Strengths
- Cheapest 1M-context model
- Very fast
- Multimodal
Weaknesses
- Weaker reasoning than 2.5 Pro
Best for
- High-throughput pipelines
- RAG
- Bulk processing
Quick verdict
- Pick GPT-5.5 mini if you want it smarter.
- Pick Gemini 2.0 Flash if you want it faster, cheaper and longer context.
Auto-generated from the spec sheet. Always validate on your own evals.
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