Gemma 4 31B Instruct is Google DeepMind's 30.7B dense multimodal model supporting text and image input with text output. Features a 256K token context window, configurable thinking/reasoning mode, native function...
Model details →Google: Gemma 4 31B vs OpenAI: o3 Pro (batch)
Google: Gemma 4 31B wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o3-pro model uses more compute to think harder and provide consistently...
Model details →Side-by-side comparison
| Capability | Google: Gemma 4 31B | OpenAI: o3 Pro (batch) | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 262K | 200K | 🏆 Google: Gemma 4 31B |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.10 | $10.00 | 🏆 Google: Gemma 4 31B |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $0.34 | $40.00 | 🏆 Google: Gemma 4 31B |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Google: Gemma 4 31B better than OpenAI: o3 Pro (batch)?
Google: Gemma 4 31B wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Google: Gemma 4 31B and OpenAI: o3 Pro (batch)?
Input: $0.10 vs $10.00 per 1M tokens. Output: $0.34 vs $40.00 per 1M tokens.
What context windows do Google: Gemma 4 31B and OpenAI: o3 Pro (batch) support?
Google: Gemma 4 31B supports up to 262K tokens. OpenAI: o3 Pro (batch) supports up to 200K tokens.
Do both Google: Gemma 4 31B and OpenAI: o3 Pro (batch) support tool calling?
Google: Gemma 4 31B: yes. OpenAI: o3 Pro (batch): yes.
Compare Google: Gemma 4 31B with other models
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