Gemini 3.6 Flash vs GPT-5.5 Pro
At a Glance
| Compare |  Gemini 3.6 FlashGoogle DeepMind |  GPT-5.5 ProOpenAI |
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| IntelligenceHigher is better · MM Intelligence v2.5 | #19 of 4666.4 score · 3/3 sources · complete | UnrankedNot in the 46-model eligible cohort |
| CostLower is better · Published-token output estimate | #11 of 44$0.055 per LiveBench case | UnrankedNot in the 44-model eligible cohort |
| EfficiencyHigher is better · MM Efficiency v1.5 | #5 of 3863.7 score · 3/3 sources · complete | UnrankedNot in the 38-model eligible cohort |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $0.75Google AI ↗ · Aug 29, 2026 | $30.00Openai ↗ · Sep 3, 2026 |
| Output priceFrom · USD / 1M tokens | $3.75Google AI ↗ · Aug 29, 2026 | $180.00Openai ↗ · Sep 3, 2026 |
| Context windowMaximum documented tokens | 1,049K | 1,050K |
| Model facts checked | Aug 29, 2026View model evidence → | Sep 3, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
| Benchmark | Gemini 3.6 Flash | GPT-5.5 Pro |
|---|---|---|
| ARC-AGI-1verified-v1-ba05d69f6453 · verified_score · leader | 91.1794% of row best · percent · Gemini 3.6 Flash (High) | 96.50100% of row best · percent · GPT-5.5 Pro (High) |
| ARC-AGI-2verified-v2-6c676fa3e9af · verified_score · leader | 60.4271% of row best · percent · Gemini 3.6 Flash (High) | 84.58100% of row best · percent · GPT-5.5 Pro (High) |
| Overall ResultCounted from the protocol-matched rows above | 0 benchmark winsNo overall winner | 2 benchmark winsNo overall winner |
Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.
Side-by-Side Facts
| Field | Gemini 3.6 Flash | GPT-5.5 Pro |
|---|---|---|
| Developer | Google DeepMind | OpenAI |
| Family | Gemini 3 | Gpt 5 5 |
| Model | Gemini 3.6 Flash | GPT-5.5 Pro |
| Version | Gemini 3.6 Flash | GPT-5.5 Pro |
| Lifecycle | active | active |
| Released | Unknown | 2026-04-23 |
| Knowledge cutoff | Unknown | 2025-12-01 |
| Input modalities | Text, Image, Video, Audio, Document | Text, Image |
| Output modalities | Text | Text |
| Context window | 1,049K | 1,050K |
| Total parameters | Unknown | Unknown |
| Active parameters | Unknown | Unknown |
| License | Unknown | Unknown |
| Open weights | No | No |
| API available | Yes | Yes |
| Self-hostable | No | No |
| Provider access | Google AI (Standard), Google Gemini (Standard) | Openai (Standard), Openrouter (Standard) |
| Capabilities | chat, generation, reasoning, tools | chat, generation, reasoning, structured_outputs, tools |
Gemini 3.6 Flash Capabilities
GPT-5.5 Pro Capabilities
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Primary Evidence
Sources and Freshness
Questions
Gemini 3.6 Flash vs GPT-5.5 Pro FAQs
Is Gemini 3.6 Flash or GPT-5.5 Pro better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Gemini 3.6 Flash and GPT-5.5 Pro, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Gemini 3.6 Flash or GPT-5.5 Pro?+
Gemini 3.6 Flash is $0.75 and GPT-5.5 Pro is $30.00 per million tokens, so Gemini 3.6 Flash is cheaper on this metric. Gemini 3.6 Flash is $3.75 and GPT-5.5 Pro is $180.00 per million tokens, so Gemini 3.6 Flash is cheaper on this metric.
Which has a larger context window, Gemini 3.6 Flash or GPT-5.5 Pro?+
GPT-5.5 Pro has the larger sourced context window. Gemini 3.6 Flash supports 1,049K and GPT-5.5 Pro supports 1,050K.
Which performs better in benchmarks, Gemini 3.6 Flash or GPT-5.5 Pro?+
There is no overall benchmark winner: An overall winner requires at least two decisive benchmarks from at least two original publishers.
Can Gemini 3.6 Flash or GPT-5.5 Pro be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Gemini 3.6 Flash is not marked open weight; GPT-5.5 Pro is not marked open weight.
Can Gemini 3.6 Flash and GPT-5.5 Pro understand images?+
Gemini 3.6 Flash is documented with image input; GPT-5.5 Pro is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Gemini 3.6 Flash or GPT-5.5 Pro?+
GPT-5.5 Pro has the larger sourced maximum output: Gemini 3.6 Flash supports 66K and GPT-5.5 Pro supports 128K output tokens.
Do Gemini 3.6 Flash and GPT-5.5 Pro support reasoning and tool use?+
Gemini 3.6 Flash: reasoning, tool calling, and image input. GPT-5.5 Pro: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Gemini 3.6 Flash or GPT-5.5 Pro?+
Gemini 3.6 Flash has 2 sourced provider routes; GPT-5.5 Pro has 2, a tie.
Which offers better value, Gemini 3.6 Flash or GPT-5.5 Pro?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.