Gemini 3.1 Pro alternatives
Looking for an alternative to Gemini 3.1 Pro? Here are the 6 closest llm provider / model options for AI coding, each ranked by how well it replaces Gemini 3.1 Pro — with the concrete reason to switch.
Quick comparison
| Model | Input price | SWE-bench | Context window | Speed |
|---|---|---|---|---|
| Gemini 3.1 Pro (you) | $2 | — | 1M+ | Standard |
| Gemini 2.5 Pro | $1.25 | 63% | 1M+ | Standard |
| GPT-5.5 | $5 | 75% | 1M+ | Standard |
| GPT-4o | $2.50 | 38% | 128K | Fast |
| Claude Haiku 4.5 | $1 | 40% | 200K | Fast |
| Claude Opus 4.7 | $5 | 72% | 1M+ | Slow/Reasoning |
| Gemma 4 31B | Free (self-hosted) | 32% | 256K | Standard |
The best Gemini 3.1 Pro alternatives
Advanced reasoning, multimodal workflows, massive context tasks, agentic coding
Why consider it instead:
- Cheaper — $1.25/1M input vs $2, ~1.6× less
GPT-5.5
Frontier reasoning, agentic coding, long-context refactors, multimodal analysis, replaces GPT-5.4 as default flagship
Why consider it instead:
- Built for: Frontier reasoning, agentic coding, long-context refactors, multimodal analysis, replaces GPT-5.4 as default flagship
GPT-4o
Multimodal tasks, fast chat, broad general use
Why consider it instead:
- Faster — better for autocomplete
High-volume quick tasks, cost-sensitive agentic loops, inline completions
Why consider it instead:
- Cheaper — $1/1M input vs $2, ~2.0× less
- Faster — better for autocomplete
Complex refactors, agentic coding, hard debugging, deep reasoning
Why consider it instead:
- Built for: Complex refactors, agentic coding, hard debugging, deep reasoning
Frontier open-weights on workstation, agentic coding, reasoning, local multimodal tasks
Why consider it instead:
- Cheaper — $0/1M input vs $2
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