Gemma 4 12B vs o3-pro
Benchmark Performance
Available Benchmarks
Technical Differences
Side-by-Side Facts
| Field | Gemma 4 12B | o3-pro |
|---|---|---|
| Developer | Google DeepMind | Openai |
| Family | Gemma 4 | O3 |
| Model | Gemma 4 12B | o3-pro |
| Version | Gemma 4 12B | o3-pro |
| Lifecycle | active | active |
| Released | 2026-05-23 | 2025-06-10 |
| Knowledge cutoff | Unknown | 2024-06-01 |
| Input modalities | Text, Image, Video, Audio | Text, Image |
| Output modalities | Text | Text |
| Context window | 262,144 | 200,000 |
| Total parameters | 12,000,000,000 | Unknown |
| Active parameters | Unknown | Unknown |
| License | apache-2.0 | Unknown |
| Open weights | Yes | No |
| API available | Yes | Yes |
| Self-hostable | Yes | No |
| Provider access | Together Ai (Standard) | Openai (Standard), Openrouter (Standard) |
| Capabilities | chat, generation, reasoning, structured_outputs, tools | chat, generation, reasoning, structured_outputs, tools |
14 comparable fields · 10 material differences · Pair passes the primary-source comparison gate
Gemma 4 12B Capabilities
o3-pro Capabilities
Internal Comparison Graph
Related Comparisons
| A | Pair | B | Context |
|---|---|---|---|
o3OpenAI | vs | o3-proOpenAI | family variantsimage, text |
Gemma 4 12BGoogle DeepMind | vs | Gemma 4 26B-A4BGoogle DeepMind | family variantsimage, text |
Gemma 4 12BGoogle DeepMind | vs | Gemma 4 E2BGoogle DeepMind | family variantsaudio, image, text, video |
Gemma 4 12BGoogle DeepMind | vs | Gemma 4 E4BGoogle DeepMind | family variantsaudio, image, text, video |
Seed 2.0 LiteByteDance Seed | vs | Gemma 4 12BGoogle DeepMind | cross-developer peersaudio, image, text, video |
Gemma 4 12BGoogle DeepMind | vs | Gemma 4 31BGoogle DeepMind | family variantsimage, text |
Claude Opus 4.5Anthropic | vs | o3-proOpenAI | cross-developer peersimage, text |
Claude Sonnet 4.5Anthropic | vs | o3-proOpenAI | cross-developer peersimage, text |
Claude Opus 4.5Anthropic | vs | Gemma 4 12BGoogle DeepMind | cross-developer peersimage, text |
Gemma 4 E2BGoogle DeepMind | vs | o3-proOpenAI | cross-developer peersimage, text |
Seed 2.1 ProByteDance Seed | vs | o3-proOpenAI | cross-developer peersimage, text |
Gemma 4 12BGoogle DeepMind | vs |  Ministral-3-14B-Reasoning-2512Mistral AI | cross-developer peersimage, text |
Primary Evidence
Sources and Freshness
Questions
Gemma 4 12B vs o3-pro FAQs
Is Gemma 4 12B or o3-pro better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Gemma 4 12B and o3-pro, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Gemma 4 12B or o3-pro?+
Only o3-pro has a directly sourced input price: $20.00 per million tokens. Only o3-pro has a directly sourced output price: $80.00 per million tokens.
Which has a larger context window, Gemma 4 12B or o3-pro?+
Gemma 4 12B has the larger sourced context window. Gemma 4 12B supports 262,144 and o3-pro supports 200,000.
Which performs better in benchmarks, Gemma 4 12B or o3-pro?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Gemma 4 12B or o3-pro be self-hosted?+
Gemma 4 12B is the only model in this pair currently marked as self-hostable. Gemma 4 12B is open weight; o3-pro is not marked open weight.
Can Gemma 4 12B and o3-pro understand images?+
Gemma 4 12B is documented with image input; o3-pro is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Gemma 4 12B or o3-pro?+
Neither has a larger sourced maximum output. Gemma 4 12B is — and o3-pro is 100,000.
Do Gemma 4 12B and o3-pro support reasoning and tool use?+
Gemma 4 12B: reasoning, tool calling, and image input. o3-pro: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Gemma 4 12B or o3-pro?+
Gemma 4 12B has 1 sourced provider route; o3-pro has 2, so o3-pro has broader tracked availability.
Which offers better value, Gemma 4 12B or o3-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.