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ModelCap

GPT-6 Sol

Current board #2NewAPI only7d #2 → #2

OpenAI·openai/gpt-6-sol

GPT-6 Sol is ModelCap current-board rank #2 with Index 89.3 (Measured), from the ModelCap Index as of 22 Sept 2026, 21:09 UTC.

GPT-6 Sol listed OpenRouter input price is $2.00 per 1M tokens and listed output price is $10.00 per 1M tokens, from OpenRouter listed prices as of 22 Sept 2026, 21:09 UTC.

GPT-6 Sol has a published context limit of 1M tokens in the ModelCap catalogue as of 22 Sept 2026, 21:09 UTC.

GPT-6 Sol has 4 published OpenRouter serving endpoints, from OpenRouter as of 22 Sept 2026, 21:09 UTC.

GPT-6 Sol weight access is api only, from ModelCap classification of published repository metadata as of 22 Sept 2026, 21:09 UTC.

Snapshot facts · download the public dataset · methodology

ModelCap Index · Current board
89.3#2
Measured · 20% support · score interval 67.4–100.0
Evidence as of 22 Sept 2026, 19:30 UTC
Market Gravity
38.0
Secondary market signal
Input
$2.00
per 1M tokens
Output
$10.00
per 1M tokens
Context
1M
tokens
Providers
4
endpoints
Gateway spend
latest · Vercel share

Providers

Uptime measured over the last 30 minutes
ProviderInputOutputContextQuantUptime
OpenAIflexCheapest$1.00$5.001M100.0%
OpenAI$2.00$10.001M100.0%
Amazon Bedrockus-east-1$2.20$11.001M
OpenAIfast$4.00$20.001M

Other versions (1)

ModelCap Index · Current board

Methodology
89.3
Measured · 1 public benchmark observation across 1 board
Current board
#2
Public rank basis
Measured (measured)
Index support
20.0% · limited
Index interval
67.4–100.0
Rank posterior
Not available
Top 5 / Top 10 probability
Not available / Not available
Posterior as of
Snapshot timestamp unavailable
Evidence as of
22 Sept 2026, 19:30 UTC
Identity binding
Exact catalogue product · openai/openai/gpt-6-sol · aggregates disclosed benchmark configurations · endpoint configuration not claimed
Index observations used
1
Qualified Index evidence point
89.3
Bayesian Evidence Score · measured evidence input only

BES normalizes admitted public benchmark evidence for measured Index rows. Its legacy score and observables prior do not define the public language rank.

Observed capability
89.3
Evidence status
provisional · 50% mass
General preference
89.3
Coding
Agents & tools
Reasoning
Evidence breadth
80%
Evidence coverage
20%
Market and catalogue signals · secondary, never the language Index rank
Usage (OpenRouter popularity)
11.1
Liquidity (providers × uptime)
77.8
Open reach (HF downloads)
Surface (context / tools / modalities)
100.0
Freshness
100.0
  • · OpenRouter popularity #172
  • · 2 live providers
  • · Catalogue: context 1050000, reasoning, tools, modalities File/Image/Text
  • · First seen 2026-09-22

These adoption and deployment observations remain context only. They do not change this model's ModelCap Index score or rank.

BES evidence selected · measured input only

The bounded 0–100 capability score blends each source’s competitive placement with its published achievement, then combines capability families. Evidence breadth adds a modest uncertainty adjustment; price and popularity are not part of benchmark-led rank.

Deployment readiness

Metadata index
40.6
limited · 56% metadata coverage
Not capability
Artifact reproducibility
0.0
Access & legal clarity
30.3
Deployability
90.0
Evaluation provenance
37.9

Missing: artifactReproducibility.revision-sha, artifactReproducibility.architecture-and-model-type, artifactReproducibility.parameter-count, artifactReproducibility.serialized-weight-format, artifactReproducibility.base-lineage, accessLegalClarity.declared-license, accessLegalClarity.resolvable-license-terms, evaluationProvenance.evaluation-dataset-revisions.

A metadata completeness and deployability index—not a safety certification, quality grade, or production-readiness claim.

Market activity

Venue coverage
Market Gravity
38.0
OpenRouter weekly popularity
#172 of 327

Market Gravity uses OpenRouter’s full-catalogue popularity order. Sparse Vercel top-ten observations appear only when published and do not affect the score.

Arena preference

No matched Arena rating

This model is visible because it is available in the live catalogue, but it has no trustworthy community result yet. ModelCap does not infer a quality score from price, features, or market activity.

Market Gravity breakdown

Usage55%
11.1

OpenRouter weekly popularity across the full model catalogue.

Liquidity25%
77.8

Independent providers versus the model's open or closed cohort, weighted by uptime.

Open reach15%
50.0

Hugging Face 30-day downloads for open models; neutral for closed models.

Freshness5%
100.0

Time since first public availability, on a six-month half-life.

Specification

Context window
1M tokens
Max output
128K tokens
Inputs
File, Image, Text
Outputs
Text
Tokenizer
GPT
Cached input tokens
$0.20 / 1M
First seen on OpenRouter
22 Sept 2026

Capabilities

  • Supported: Reasoning
  • Supported: Tool use
  • Supported: Structured output
  • Supported: Response format
  • Supported: Moderated

Compare GPT-6 Sol with

Pick any model

Benchmark leaderboards featuring GPT-6 Sol

All leaderboards
Public benchmark boards on which GPT-6 Sol has a published result
LeaderboardScoreSource rankConfigurationPublished
Artificial Analysis Intelligence IndexArtificial Analysis47.5#18 of 168intelligence-index:v4.3:max22 Sept 2026
Humanity's Last Exam (Artificial Analysis run)Artificial Analysis47.9%#25 of 632hle:may-2025:text-only-2158:no-tools:pass-at-1:source-model="GPT-6 Sol (max)":reasoning=true22 Sept 2026

Alternatives to GPT-6 Sol, by the numbers

Ranked neighbours

Models within 3 places of #2 on the ModelCap Index.

Cheaper at a similar or higher Index

Index score within 3 points of, or above, this model's, with a lower listed blended price (3:1 input:output).

Other ranked OpenAI models

The same publisher's other current models with a public Index position.

GPT-6 Sol: common questions

How does GPT-6 Sol rank among AI models?

GPT-6 Sol holds ModelCap Index position #2 of 259 ranked language models as of 22 September 2026, with an Index score of 89.3 (interval 67.4–100.0); evidence: measured. The Index combines public benchmark boards with published uncertainty; the methodology page explains the weighting.

How much does GPT-6 Sol cost per 1M tokens?

GPT-6 Sol is listed at $2.00 per 1M input tokens and $10.00 per 1M output tokens as of 22 September 2026; the lowest output price among 2 providers is $5.00 on OpenAI. Prices come from the OpenRouter catalogue and re-observe on every refresh. For 1,000 requests using 2,000 input and 500 output tokens each, the listed rates imply $9.00 total (2M input + 0.5M output). This excludes caching, batch discounts, prompt-length tiers, tool charges and retries; verify the chosen endpoint's rate and limits before budgeting.

What is the context window of GPT-6 Sol?

GPT-6 Sol has a published context window of 1M tokens (1,050,000) and a maximum output of 128K tokens. Individual providers can serve less than the published maximum; the providers table lists each endpoint's own limit.

Is GPT-6 Sol open-weight?

API only. No downloadable model weights are linked in the current source data; access is through a hosted API or product.

Which API providers serve GPT-6 Sol?

2 providers serve GPT-6 Sol through OpenRouter as of 22 September 2026: OpenAI and Amazon Bedrock. Each provider's price, context limit, quantization and measured uptime are in the providers table above.

Which benchmarks has GPT-6 Sol been evaluated on?

GPT-6 Sol has published results on 2 public boards tracked by ModelCap as of 22 September 2026: AA Intelligence Index 47.5 (#18 of 168) and AA Humanity's Last Exam 47.9% (#25 of 632). Each board page ranks every tracked model on that benchmark; the ModelCap Index combines them with published uncertainty.

How does GPT-6 Sol compare with Claude Fable 5.1?

GPT-6 Sol ranks #2 (Index 89.3) and Claude Fable 5.1 ranks #3 (Index 88.5) on the ModelCap Index as of 22 September 2026. The head-to-head page lines up their benchmarks, listed prices, context windows and provider counts side by side.

When was GPT-6 Sol released?

GPT-6 Sol first appeared in the catalogue on 22 Sept 2026. It is the current version in its family. Rank and price movements since then are recorded on the site's changes feed.