GPT-6.1 Sol
OpenAIProprietaryReleased Sep 29, 2026
GPT-6.1 Sol ranks #58 on LMArena (1446.5); official output price $10.00 per 1M tokens.
Key metrics
Rank history
LMArena rank, last 7 days#60 on Oct 3, #58 now; best #58 in this period.
Reasoning effort comparison
Artificial Analysis measurements per reasoning effort of the same model| Effort | Intelligence | Coding | tok/s | TTFT (s) | First answer (s) |
|---|---|---|---|---|---|
| maxUsed in table | 51.8 | – | 58 | 206 | 206 |
| xhigh | 51.0 | – | 55 | 74 | 74 |
| high | 50.2 | – | 54 | 30 | 30 |
| medium | 47.8 | – | 53 | 6.2 | 6.2 |
| low | 42.1 | – | 53 | 2.8 | 2.8 |
Models ranked nearby
Sorted by Arena score| # | Model | Arena | Intel. | Output $ | tok/s |
|---|---|---|---|---|---|
| 42 |  Grok 4.5 | 1448.1 | 38.8 | $6.00 | – |
| 43 |  Qwen3.6 Max | 1446.9 | 28.4 | $7.80 | – |
| 44 | GPT-5.6 Terra | 1446.5 | 42.1 | $12.00 | 111 |
| 45 | GPT-6.1 SolThis page | 1446.5 | 51.8 | $10.00 | 58 |
| 46 |  GLM-5 | 1446.2 | 27.9 | $3.20 | – |
| 47 |  Kimi K2.5 | 1445.2 | 23.5 | $2.75 | – |
| 48 | GPT-5.1 | 1442.7 | 24.7 | $10.00 | – |
More from OpenAI
| # | Model | Arena | Intel. | Output $ | tok/s |
|---|---|---|---|---|---|
| 22 | GPT-5.5 | 1471.5 | 38.4 | $30.00 | – |
| 27 | GPT-5.4 | 1469.0 | 39.0 | $15.00 | – |
| 35 | GPT-5.6 Sol | 1457.3 | 47.0 | $20.00 | – |
| 44 | GPT-5.6 Terra | 1446.5 | 42.1 | $12.00 | 111 |
| 48 | GPT-5.1 | 1442.7 | 24.7 | $10.00 | – |
| 52 | GPT-6 Astra | 1440.5 | 52.7 | $50.00 | 48 |
Pricing
- Official API list price: $2.00 input and $10.00 output per 1M tokens (USD).
- At a typical 3:1 input-to-output ratio, the blended cost is about $4.00 per 1M tokens.
- Among 78 models with an output price, it is the #50 cheapest.
- The cheapest OpenRouter route charges $2.00 input / $10.00 output.
Sources & methodology
GPT-6.1 Sol (OpenAI): Arena 1446.5 (#58), Intelligence Index 51.8, $2.00 in / $10.00 out per 1M tokens, 1.05M context. Data updated Oct 9, 2026.
- LMArena — Arena score, 95% confidence interval, votes and rank.
- Artificial Analysis — Intelligence / Coding Index, output speed and latency (medians).
- OpenRouter — Route prices, context length and listing date.
Arena scores use the Bradley-Terry model (not Elo); ± is the half-width of the 95% confidence interval. Latency figures are Artificial Analysis medians; for reasoning models, time to first token and to first answer include the thinking phase. Data syncs daily at 14:20 (UTC+8).
FAQ
What rank is GPT-6.1 Sol right now?
GPT-6.1 Sol is #45 on our leaderboard of 68 scored models (Arena score 1446.5); its raw LMArena rank is #58.
What does GPT-6.1 Sol cost via API?
Input $2.00 / output $10.00 per 1M tokens (official API list price; the OpenRouter quote when no official price is available). At a typical 3:1 input-to-output ratio, the blended cost is about $4.00 per 1M tokens.
How fast is GPT-6.1 Sol?
Artificial Analysis measures about 58 output tokens per second, 206 s to the first token and 206 s to the first answer token; it is a reasoning model, so latency includes thinking time.
How close is GPT-6.1 Sol to the models ranked next to it?
It is 0.0 points behind GPT-5.6 Terra (1446.5) and 0.3 points ahead of GLM-5 (1446.2); gaps smaller than the confidence interval (±9.1) are not significant.
Is GPT-6.1 Sol open source? Can it be self-hosted?
GPT-6.1 Sol is a closed model, available only via official APIs or hosted services.
What is the context length of GPT-6.1 Sol?
1.05M (1,050,000 tokens, as listed on OpenRouter).