Where is the GPT-6 Sol documentation?

The GPT-6 Sol documentation on OpenRouter includes the GPT-6 Migration Guide cookbook. The quickstart covers API keys and your first request, and the API reference lists every parameter.

How much does GPT-6 Sol cost?

GPT-6 Sol costs $2.00/M input tokens and $10.00/M output tokens, with separate rates for Cache Read at $0.20/M tokens and Cache Write at $2.50/M tokens.

What is the context length of GPT-6 Sol?

GPT-6 Sol has a 1,050,000 token context window. It supports up to 128,000 completion tokens.

Does GPT-6 Sol support tool calling and structured outputs?

Yes. GPT-6 Sol accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.

Can I disable prompt caching for GPT-6 Sol?

Yes. OpenAI caches prompts of 1024 tokens or more automatically, and GPT-6 Sol bills a cache write on each cached prompt whether or not the cached prefix is read again. To turn caching off for a request, set prompt_cache_options.mode to "explicit" at the request root and do not mark any content block with prompt_cache_breakpoint. Explicit mode disables OpenAI-managed breakpoints, so a request with none of your own has no cacheable prefix and is billed at the plain input rate. See the prompt caching guide.

What inputs and outputs does GPT-6 Sol support?

GPT-6 Sol accepts files such as PDFs, images, and text as input and returns text.

Which providers serve GPT-6 Sol?

GPT-6 Sol is served by 3 providers on OpenRouter: OpenAI, Amazon Bedrock, and Azure. Requests are routed to the best available provider, with automatic failover to the others, and you can pin or exclude providers with provider routing.

When was GPT-6 Sol released?

GPT-6 Sol was released on September 22, 2026.

OpenAI: GPT-6 Sol

openai/gpt-6-sol

Compare

GPT-6 Sol is the cost-efficient high-end model in OpenAI's GPT-6 series, positioned below the flagship GPT-6 Astra and above the fast GPT-6 Luna tier. It is suited for demanding professional work, agentic coding, business workflow automation, and computer use, and is particularly strong at long-horizon software engineering tasks in real codebases. It approaches Astra-level factual reliability at a much lower cost and shares Astra's clearer, more concise communication style in technical and coding conversations.

Modalities

In / out price

$2 / $10per 1M

Context

1.1M

Released

Sep 22, 2026

Providers

Different companies host the same model. OpenRouter routes your request to one of them based on the routing mode you pick: Balanced (price + speed), Nitro (fastest), or Floor (cheapest).

Latency / throughput


	$2.00	$10.00	$0.20	2.24s	74 tok/s	100.00%
	$2.00	$10.00	$0.20	1.67s	60 tok/s	100.00%
	$2.00	$10.00	$0.20	2.32s	48 tok/s	100.00%
Not used in Standard routing:Why these endpoints are not used
Flex	$1.00	$5.00	$0.10	1.87s	118 tok/s	100.00%
	$2.20	$11.00	$0.22	0.68s	56 tok/s	100.00%
	$2.20	$11.00	$0.22	2.70s	62 tok/s	99.87%
	$2.20	$11.00	$0.22	--	--	--
Fast	$4.00	$20.00	$0.40	2.39s	76 tok/s	100.00%

Input $2.00Output $10.00
74 tok/s100.00% uptime
Input $2.00Output $10.00
60 tok/s100.00% uptime
Input $2.00Output $10.00
48 tok/s100.00% uptime
Not used in Standard routing:Why these endpoints are not used
Input $1.00Output $5.00
Flex
118 tok/s100.00% uptime
Input $2.20Output $11.00
56 tok/s100.00% uptime
Input $2.20Output $11.00
62 tok/s99.87% uptime
Input $2.20Output $11.00
-- tok/s-- uptime
Input $4.00Output $20.00
Fast
76 tok/s100.00% uptime

Pricing

The average price customers actually pay for this model, next to the prices providers post. Caching and discounts mean the price actually paid is often well below the listed one.

Weighted average

Input

$0.4829/M tokens

Output

$9.81/M tokens

GPT-6 Sol — Price history

Price history

No effective price data for this selection

		$0.433	$10.04	90.9%	50.5%
		$0.451	$10.14	90.9%	1.8%
		$0.538	$10.05	86.6%	41.8%
Not used in Standard routing:Why these endpoints are not used
	Flex	$0.371	$5.12	82.8%	4.0%
	Fast	$0.750	$20.00	92.4%	1.5%
		$1.130	$11.00	64.0%	0.0%
		$1.284	$11.12	65.6%	0.4%
		$1.363	$11.00	53.4%	0.1%

Effective in $0.433Effective out $10.04
Token share
50.5%
Effective in $0.451Effective out $10.14
Token share
1.8%
Effective in $0.538Effective out $10.05
Token share
41.8%
Not used in Standard routing:Why these endpoints are not used
Effective in $0.371Effective out $5.12
FlexToken share
4.0%
Effective in $0.750Effective out $20.00
FastToken share
1.5%
Effective in $1.130Effective out $11.00
Token share
0.0%
Effective in $1.284Effective out $11.12
Token share
0.4%
Effective in $1.363Effective out $11.00
Token share
0.1%

Uptime

Uptime is the percentage of the past 3 days that at least one provider was responding to requests. Availability is the percentage of time that inference was successfully served. OpenRouter continuously monitors and uses the next-best provider when one returns an error.

Uptime (3d)

100.00%

Availability (3d)

98.69%

Availability over the last 3 days

Last 72 hours

Availability 98.69%

3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability

98.38%

Without Routing

97.64%

When an error occurs in an upstream provider, we can recover by routing to another healthy provider, if your request filters allow it. You can access per-provider uptime data programmatically through the Endpoints API. Learn more about our load balancing and provider routing options.

Benchmarks

Scores on standardized evaluations and this model’s own outputs on shared benchmark prompts. Higher percentages are better — and each rank shows where this model lands among the models evaluated on that source.

Benchmark score summary for OpenAI: GPT-6 Sol (Artificial Analysis and Vals AI)
Source	Benchmark	Score
Artificial Analysis	GPT-6 Sol (Max) Intelligence Index	44.2
Artificial Analysis	GPT-6 Sol (Max) HLE	47.9%
Artificial Analysis	GPT-6 Sol (Max) AA-LCR	83.7%
Artificial Analysis	GPT-6 Sol (Max) GDPval-AA	50.8%
Artificial Analysis	GPT-6 Sol (Max) CritPt	30.9%
Artificial Analysis	GPT-6 Sol (Max) SciCode	57.6%
Artificial Analysis	GPT-6 Sol (Max) Terminal-Bench 4.0	43.9%
Artificial Analysis	GPT-6 Sol (Max) AA-Omniscience Accuracy	51.1%
Artificial Analysis	GPT-6 Sol (Max) AA-Omniscience Non-Hallucination Rate	39.2%
Artificial Analysis	GPT-6 Sol (Low) HLE	34.9%
Artificial Analysis	GPT-6 Sol (Low) AA-LCR	79.3%
Artificial Analysis	GPT-6 Sol (Low) GDPval-AA	35.1%
Artificial Analysis	GPT-6 Sol (Low) CritPt	16.3%
Artificial Analysis	GPT-6 Sol (Low) SciCode	50.2%
Artificial Analysis	GPT-6 Sol (Low) Terminal-Bench 4.0	9.1%
Artificial Analysis	GPT-6 Sol (Medium) HLE	41.0%
Artificial Analysis	GPT-6 Sol (Medium) AA-LCR	82.3%
Artificial Analysis	GPT-6 Sol (Medium) GDPval-AA	42.6%
Artificial Analysis	GPT-6 Sol (Medium) CritPt	24.6%
Artificial Analysis	GPT-6 Sol (Medium) SciCode	53.8%
Artificial Analysis	GPT-6 Sol (Medium) Terminal-Bench 4.0	18.7%
Artificial Analysis	GPT-6 Sol (Non-reasoning) HLE	18.4%
Artificial Analysis	GPT-6 Sol (Non-reasoning) AA-LCR	64.0%
Artificial Analysis	GPT-6 Sol (Non-reasoning) GDPval-AA	37.7%
Artificial Analysis	GPT-6 Sol (Non-reasoning) CritPt	4.0%
Artificial Analysis	GPT-6 Sol (Non-reasoning) SciCode	47.3%
Artificial Analysis	GPT-6 Sol (Non-reasoning) Terminal-Bench 4.0	13.1%
Artificial Analysis	GPT-6 Sol (High) HLE	44.1%
Artificial Analysis	GPT-6 Sol (High) AA-LCR	83.7%
Artificial Analysis	GPT-6 Sol (High) GDPval-AA	45.2%
Artificial Analysis	GPT-6 Sol (High) CritPt	25.4%
Artificial Analysis	GPT-6 Sol (High) SciCode	54.9%
Artificial Analysis	GPT-6 Sol (High) Terminal-Bench 4.0	26.3%
Artificial Analysis	GPT-6 Sol (Xhigh) HLE	46.3%
Artificial Analysis	GPT-6 Sol (Xhigh) AA-LCR	81.3%
Artificial Analysis	GPT-6 Sol (Xhigh) GDPval-AA	48.3%
Artificial Analysis	GPT-6 Sol (Xhigh) CritPt	28.0%
Artificial Analysis	GPT-6 Sol (Xhigh) SciCode	55.1%
Artificial Analysis	GPT-6 Sol (Xhigh) Terminal-Bench 4.0	30.3%
Vals AI	GPT-6 Sol BioMysteryBench	74.8%
Vals AI	GPT-6 Sol Code Migration	57.2%
Vals AI	GPT-6 Sol CyberBench v1.1	78.0%
Vals AI	GPT-6 Sol EMB	71.5%
Vals AI	GPT-6 Sol Finance Agent (v2)	49.0%
Vals AI	GPT-6 Sol Financial Coaching Bench	62.6%
Vals AI	GPT-6 Sol Harvey's Legal Agent Benchmark v1	1.7%
Vals AI	GPT-6 Sol IOI	82.6%
Vals AI	GPT-6 Sol Legal Research Bench	28.8%
Vals AI	GPT-6 Sol MedCode	47.1%
Vals AI	GPT-6 Sol MedScribe	82.0%
Vals AI	GPT-6 Sol MysteryMechanism	30.2%
Vals AI	GPT-6 Sol ProgramBench	2.0%
Vals AI	GPT-6 Sol ProofBench v1.1	83.0%
Vals AI	GPT-6 Sol Public Benefits Bench v1.1	56.6%
Vals AI	GPT-6 Sol Vals RSI Index	28.1%
Vals AI	GPT-6 Sol SAGE v1	44.8%
Vals AI	GPT-6 Sol Vals Science Index	45.0%
Vals AI	GPT-6 Sol SRE Bench	30.5%
Vals AI	GPT-6 Sol Tax Agent Bench	15.0%
Vals AI	GPT-6 Sol Terminal-Bench 4.0	44.4%
Vals AI	GPT-6 Sol Terminal-Bench-Science	30.0%
Vals AI	GPT-6 Sol Vals Index	57.5%
Vals AI	GPT-6 Sol Vibe Code Bench v1.1	87.8%

Apps

Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for.

Codex

A coding agent that helps you build and ship with AI

143Btokens

Claude Code

Claude Code is Anthropic's agentic coding tool that reads your entire codebase, plans and executes changes across files, runs tests, and iterates on failures, all from natural language prompts.

69.6Btokens

Hermes Agent

Hermes Agent is an open-source, self-improving AI agent by Nous Research that runs persistently with memory across sessions, and builds reusable skills from experience. It comes with 40+ built-in tools, including web search, browser automation, and vision, plus scheduled automations and subagents.

53.6Btokens

There are many coding agents, but this one is yours.

35.4Btokens

minitap

new

31.4Btokens

Top 5 Apps

24.3B

Rest of OpenRouter

21.6B

OpenAI: GPT Sol versions

Available through EU in-region routing

OpenAI: GPT-6 Sol is available through EU in-region routing. Requests sent to eu.openrouter.ai are decrypted in the EU and routed only to shared provider endpoints in Europe (the EU/EEA, the UK, and Switzerland).

Providers in Europe

Azure

Prices in Europe

Azure: $2.20/M tokens input, $11/M tokens output

Base URL

https://eu.openrouter.ai/api/v1

Plan

Requires Business or Enterprise. Self-serve on Business: no contract, no monthly minimum. OpenRouter Business for EU in-region routing

Fails closed: if no shared provider endpoint in Europe is available, the request errors instead of leaving the region. Requests served by your own BYOK key go to your deployment’s region, which you control. In-region routing docs

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OpenAI: GPT-6 Sol

Providers