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GPT-6.1 Sol

openai·openai/gpt-6.1-sol·GA·Closed·gpt-sol series·NEW
Near-Astra performance for complex coding, computer use, and professional work at a lower cost.

GPT-6.1 Sol by openai is offered by 21 providers on this page. Its official list price is $2.00 per 1M input tokens and $10.00 per 1M output tokens. The lowest paid channel is NanoGPT at $2.00 / $10.00 per 1M, about 1.3× below the list price. That channel is a third-party gateway, so confirm its availability and rate limits before depending on it.

Artificial Analysis rates it 51.8 on the Intelligence Index. Against its lowest blended price of $4.00 per 1M, that is roughly 13 index points per dollar, which is the value ratio the leaderboards rank on. Median output speed is 56 tokens per second, with 273.25s to the first token. Running one task of the Artificial Analysis suite costs about $0.7242, which reflects how many tokens its reasoning consumes rather than the unit price alone.

The context window is 1,050,000 tokens, with an output limit of 128,000 tokens. It supports reasoning, tool use, and structured output. Accepted input modalities are Text, Image, and PDF. Its training knowledge cuts off at 2026-04-30.

Specs & pricing

Input / output per 1M tokens
Official price·OpenAI
$2.00 / $10.00
Blended $4.00 · Cache read $0.10
Lowest paid·NanoGPTGateway
$2.00 / $10.00
Blended $4.00 · 1.3× spread
Context
1,050,000
Output limit
128,000
Knowledge cutoff
2026-04-30
Released / updated
2026-09-29 / 2026-09-29
Capabilities
✓ Reasoning✓ Tool use✓ Structured outputTemperature✓ Attachments
Modalities
TextImagePDF

Quality & performanceArtificial Analysis · Intelligence Index v4.3 · rep. tier Max

Intelligence51.8
Value13
Coding—
Agentic—
Output speed56 tok/s
TTFT273.25 s
Cost per task$0.72
Value formulaIQ 51.8 ÷ min blended $4.000 = 13
Reasoning tier → intelligence / speed (higher tier = stronger but slower)
LowIQ 42.1 · 49 tok/s
MediumIQ 47.8 · 48 tok/s
HighIQ 50.2 · 52 tok/s
XhighIQ 51 · 55 tok/s
MaxIQ 51.8 · 56 tok/s

Quality is independently evaluated by Artificial Analysis. Speed/latency are model-level medians.

Available at 21 providers21 with public prices

ProviderTierInputOutputCache readCache writeContextOutput limitStatus
NanoGPTGateway$2.00$10.00$0.10$2.501,050,000128,000
Kilo GatewayGateway$2.00$10.00$0.10$2.501,050,000128,000
OpenRouterGateway$2.00
tiered >272K: $4.00
$10.00$0.10$2.501,050,000128,000
AzureCloud$2.00
tiered >272K: $4.00
$10.00$0.10$2.501,050,000128,000
Azure Cognitive ServicesCloud$2.00
tiered >272K: $4.00
$10.00$0.10$2.501,050,000128,000
Vercel AI GatewayCloud$2.00
tiered >272K: $4.00
$10.00$0.10$2.501,050,000128,000
OfoxGateway$2.00$10.00$0.10$2.501,050,000128,000
Merge GatewayGateway$2.00$10.00$0.10$2.501,050,000128,000
GitHub CopilotCloud$2.00
tiered >272K: $4.00
$10.00$0.10$2.501,050,000128,000
Eden AIGateway$2.00
tiered >272K: $4.00
$10.00$0.10$2.501,050,000128,000
OpenAIOfficialFirst-party$2.00
tiered >272K: $4.00
$10.00$0.10$2.501,050,000128,000

Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.

Reasoning control

effort = loweffort = mediumeffort = higheffort = xhigheffort = maxeffort = none

Experimental modes2 items

ModeProviderInputOutputCache readCache write
fastOpenAI$4.00$20.00$0.20$5.00
proOpenAI————

Your usage cost

1NanoGPT$672.00
2Kilo Gateway$672.00
3OpenRouter$672.00
4Azure$672.00
5Azure Cognitive Services$672.00
6Vercel AI Gateway$672.00
14OpenAI · Official$672.00
Switch to NanoGPT to save $0/mo (0%). The gap is small, so staying on the official channel is fine.
Note: this is a gateway; verify availability and rate limits yourself.

Price historyone sample accumulated per data sync

Input list $2.00Output list $10.00Min blended $4.00

Price history accumulates from each data sync; currently only 1 sample(s) (2026-09-30). Each future sync adds a point, and once accumulated a line is drawn here.

Artificial Analysis evaluations3 items

Humanity's Last Exam52.9%
SciCode54.2%
AA-LCR83.0%

Individual evaluations run by Artificial Analysis, on the same reasoning tier as the intelligence score above. Each benchmark has its own task set and harness, so rows are not comparable with one another. The Intelligence Index above draws on a different, newer set of evaluations.

Related models

Agentic Chat (GPT-6.1 Sol)same series$0 / $0GPT-6.1 Sol (EU)same series$2.40 / $12.00GPT-6.1 Sol (Fast)same series$4.00 / $20.00GLM-5.2cheaper alternative$1.40 / $4.40GLM-5.3cheaper alternative$1.40 / $4.40GLM-5.3-Flashcheaper alternative$0.15 / $0.50DeepSeek V4.1 Flashcheaper alternative$0.15 / $0.60
Data partly from models.dev (MIT) · OpenAI official docs ↗