GPT-OSS 120B alternatives
Looking for an alternative to GPT-OSS 120B? Here are the 6 closest llm provider / model options for AI coding, each ranked by how well it replaces GPT-OSS 120B — with the concrete reason to switch.
Quick comparison
| Model | Input price | SWE-bench | Context window | Speed |
|---|---|---|---|---|
| GPT-OSS 120B (you) | Free (self-hosted) | 62% | 128K | Standard |
| GPT-OSS 20B | Free (self-hosted) | 61% | 128K | Fast |
| DeepSeek V4 Pro | $0.44 | 62% | 1M+ | Slow/Reasoning |
| Gemini 2.5 Pro | $1.25 | 63% | 1M+ | Standard |
| Qwen 3 Coder Next | Free (self-hosted) | 60% | 256K | Standard |
| Claude Sonnet 4.6 | $3 | 64% | 200K | Standard |
| o4-mini | $1.10 | 68% | 200K | Fast |
The best GPT-OSS 120B alternatives
Local development, consumer hardware, fast reasoning loops, cost-effective agentic coding, laptop-friendly open-weight model
Why consider it instead:
- Faster — better for autocomplete
Complex reasoning, agentic coding, hard debugging with long context
Why consider it instead:
- Bigger context window (1M+)
Advanced reasoning, multimodal workflows, massive context tasks, agentic coding
Why consider it instead:
- Higher SWE-bench (63% vs 62%)
- Bigger context window (1M+)
Next-gen open-source coding model optimized for agentic coding and local dev workflows
Why consider it instead:
- Bigger context window (256K)
Day-to-day coding, fast agentic loops, balanced cost/quality
Why consider it instead:
- Higher SWE-bench (64% vs 62%)
- Bigger context window (200K)
o4-mini
Cheap fast reasoning, agentic coding loops, high-volume tasks
Why consider it instead:
- Higher SWE-bench (68% vs 62%)
- Bigger context window (200K)
- Faster — better for autocomplete
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