Particle-1 vs GPT-6.1 Sol
Particle-1 is from Particle. GPT-6.1 Sol is from OpenAI. Particle-1 costs $0.500 per million output tokens. GPT-6.1 Sol costs $10.00. A typical request, about 1,000 words in and 400 words out, costs $0.0003 on Particle-1 and $0.0076 on GPT-6.1 Sol.
Prices updated . Benchmarks updated .
| Particle-1 | GPT-6.1 Sol | |
|---|---|---|
| Lab | Particle | OpenAI |
| You send / 1M | $0.050 | $2.00 |
| It replies / 1M | $0.500 | $10.00 |
| Context | 1.05M | 1.05M |
| Launched | 2026-10-28 | 2026-09-29 |
| Weights | Closed | Closed |
| Typical request | $0.0003 | $0.0076 |
| ECI | n/a | 167.8 |
| GPQA | n/a | 95.4% |
| ARC-AGI-2 | n/a | 94.2% |
| HLE | n/a | n/a |
| AIME | n/a | 100.0% |
| SimpleQA | n/a | 73.9% |
| CritPt | n/a | 31.7% |
| Arena | n/a | 1,446 |
| Arena web | n/a | 1,751 |
Which is cheaper?
Particle-1 costs less to run: $0.500 per million output tokens, against $10.00 for GPT-6.1 Sol. Input tokens are $0.050 per million for Particle-1 and $2.00 per million for GPT-6.1 Sol. A typical request, about 1,000 words in and 400 words out, costs $0.0003 on Particle-1 and $0.0076 on GPT-6.1 Sol.
Which scores higher?
Neither Particle-1 nor GPT-6.1 Sol has a shared independent score in the current Epoch AI and LMArena files, so this page cannot say which scores higher. Each model page lists the scores that are on file. Lab-reported numbers are labeled on those pages and are not used to rank models.
Verdict
Particle-1 has the lower published output price, at $0.500 per million tokens. A higher independent score is not available for both models, so price is the only head-to-head result. Context is 1.05M for Particle-1 and 1.05M for GPT-6.1 Sol. Use the model pages for every score on file, including lab-reported numbers.
FAQ
Which is cheaper, Particle-1 vs GPT-6.1 Sol?
Particle-1 costs less to run: $0.500 per million output tokens, against $10.00 for GPT-6.1 Sol. Input tokens are $0.050 per million for Particle-1 and $2.00 per million for GPT-6.1 Sol. A typical request, about 1,000 words in and 400 words out, costs $0.0003 on Particle-1 and $0.0076 on GPT-6.1 Sol.
Which scores higher, Particle-1 vs GPT-6.1 Sol?
Neither Particle-1 nor GPT-6.1 Sol has a shared independent score in the current Epoch AI and LMArena files, so this page cannot say which scores higher. Each model page lists the scores that are on file. Lab-reported numbers are labeled on those pages and are not used to rank models.
What is the verdict for Particle-1 vs GPT-6.1 Sol?
Particle-1 has the lower published output price, at $0.500 per million tokens. A higher independent score is not available for both models, so price is the only head-to-head result. Context is 1.05M for Particle-1 and 1.05M for GPT-6.1 Sol. Use the model pages for every score on file, including lab-reported numbers.
Open this pair in the comparison view
Sources and licenses
- OpenRouter: Prices, context windows, modalities and the model list come from the OpenRouter public API. Data: OpenRouter.
- Vercel AI Gateway: The no-training flag comes from the Vercel AI Gateway model list.
- models.dev: Lab launch dates, open-weights flags and knowledge cutoffs come from models.dev. Copyright (c) 2025 models.dev, MIT License.
- Epoch AI: Independent benchmark scores and the Epoch Capabilities Index (ECI) come from Epoch AI's Benchmarking Hub, used under CC BY 4.0. Epoch AI, Capabilities & benchmarking, epoch.ai/benchmarks. Scores Epoch marks as external keep their original license, and the source is named on each score.
- LMArena: Arena Elo (text, webdev and vision) comes from the LMArena leaderboard dataset (lmarena-ai/leaderboard-dataset), CC BY 4.0, leaderboard date 2026-10-28.
- Lab-reported scores, when an editor has added them, are the lab's own numbers. Each one links to the source and is labeled lab-reported. They are not used to rank the lists.
- What a score measures: the benchmark guide.