GPT-6.1 Terra vs Particle-1
Price, context window & benchmark comparison
VS
Compare different models
Verdict: Particle-1 is 12.3× cheaper than GPT-6.1 Terra on a typical 3:1 input/output mix. GPT-6.1 Terra has the larger context window (1.1M vs 1M).
| GPT-6.1 Terra | Particle-1 | |
|---|---|---|
| Input price / 1M | $1.00 | $0.05 |
| Output price / 1M | $5.00 | $0.50 |
| Blended price (3:1) | $2.00 | $0.16 |
| Cached input / 1M | $0.05 | $0.003 |
| Context window | 1.1M | 1M |
| Max output | 128K | 131K |
| Intelligence index | 51 | — |
| Coding index | — | — |
| Providers | 4 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-10-26 | 2026-10-28 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, GPT-6.1 Terra or Particle-1?
Particle-1 is 12.3× cheaper than GPT-6.1 Terra on a typical 3:1 input/output mix.
GPT-6.1 Terra vs Particle-1: which has a bigger context window?
GPT-6.1 Terra: 1,050,000 tokens. Particle-1: 1,048,576 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GPT-6.1 Terra ≈ $4,500, Particle-1 ≈ $350.00.
More comparisons
GPT-6.1 Terra vs GPT-6.1 Terra ProGPT-6.1 Terra vs Kimi K3.1 ProGPT-6.1 Terra vs MiniMax M3.1 FlashGPT-6.1 Terra vs DeepSeek V4.1 Flash 1017GPT-6.1 Terra vs Nemotron 3.5 Super VLGPT-6.1 Terra vs Gemini 4 ArgonGPT-6.1 Terra vs Claude Haiku 5.5GPT-6.1 Terra vs Nano Banana 2.1GPT-6.1 Terra vs Mistral Large 4GPT-6.1 Terra vs GPT-6.1 Sol ProGPT-6.1 Terra vs GPT-6.1 SolGPT-6.1 Terra vs Claude Sonnet 5.5GPT-6.1 Terra vs GLM 5.3 PrimeGPT-6.1 Terra vs Qwen3.8 Max PrimeGPT-6.1 Terra vs Command A+GPT-6.1 Terra vs GPT-6 Luna ProParticle-1 vs GPT-6.1 Terra ProParticle-1 vs Kimi K3.1 ProParticle-1 vs MiniMax M3.1 FlashParticle-1 vs DeepSeek V4.1 Flash 1017Particle-1 vs Nemotron 3.5 Super VLParticle-1 vs Gemini 4 ArgonParticle-1 vs Claude Haiku 5.5Particle-1 vs Nano Banana 2.1