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ModelActiveClosed / proprietary

gpt-6-astra

OpenAIfamily · GPT 6developers.openai.com/api/docs/models/gpt-6-astr

Our most capable model, built for the hardest end-to-end work

Open in Graph
data quality77

Updated 2 h ago · first seen 11 Sept 2026

model_01M293V76FY82AQDGKM62HKGE8

Overview

Identity

Canonical model
Yesidentity confidence: highOne row per real model release. Artifacts (checkpoints, quantisations, conversions) and folded evaluation variants point here.
Official checkpoints
None recorded — closed weightsofficial_checkpoints = hf_repo identifiers carried by the model itself; artifacts are separate entities pointing here through canonical_id.
Artifacts
None recordedSeparate entities (checkpoint · quantization · conversion · packaging) pointing to this model through canonical_id.
Provider deployments
1
API aliases
gpt-6-astragpt-6-astra-highgpt-6-astra-lowgpt-6-astra-mediumgpt-6-astra-non-reasoninggpt-6-astra-xhighopenai/gpt-6-astraIdentifiers under which providers and evaluators refer to this model.
Folded evaluation variants
5Effort / thinking variants (…-high, …-non-reasoning) are result configurations of this model, not separate models. Their old URLs redirect here.

Openness

Closed / proprietary— weights not available; 7 dimensions unknown.

Weights are not available; the model is reachable only through an API or a product.

  • Weights

    No

  • Inference code

    —

  • Training code

    —

  • Training data

    —

  • Dataset

    —

  • Commercial use

    —

  • Redistribution

    —

  • Derivatives

    —

dimensions marked null are unknown, not false

Key facts

Release date

Source:OpenRouter public model & pricing listingT2observed 11 h agomedium

Knowledge cutoff

Source:OpenAI Platform docsT1observed 11 h agohigh

Official page
developers.openai.com/api/docs/models/gpt-6-astra

Source:OpenAI Platform docsT1observed 11 h agohigh

API model id

Source:OpenAI Platform docsT1observed 11 h agohigh

Openrouter id

Source:OpenRouter public model & pricing listingT2observed 11 h agomedium

Architecture

Tokenizer

Source:OpenRouter public model & pricing listingT2observed 11 h agomedium

Capabilities

Modalities

Modalities
imagetext
Input
textimage
Output
text

Capabilities

  • Tool calling

    Yes

    OpenAI Platform docs · T1

  • Structured output

    Yes

    OpenAI Platform docs · T1

  • Reasoning

    Yes

    OpenRouter public model & pricing listing · T2

  • Vision

    Yes

    OpenAI Platform docs · T1

  • Audio

    Unavailable

  • Fine-tuning available

    No

    OpenAI Platform docs · T1

Context window

Source:OpenAI Platform docsT1observed 11 h agohigh

Max output

Source:OpenAI Platform docsT1observed 11 h agohigh

Knowledge cutoff

Source:OpenAI Platform docsT1observed 11 h agohigh

Tokenizer

Source:OpenRouter public model & pricing listingT2observed 11 h agomedium

Benchmarks50

Compare with another model →

Comparable same task and conditions · Partially comparable same task, conditions differ (effort, temperature, judge) · Not comparable different variant or metric

Benchmark results grouped by comparability group
Benchmark · groupBest scoreTrustConfigurationResultsvs leaderEvaluatedSource
Terminal-Benchagentic · accuracy · variant=v2.1 · evaluator=Artificial AnalysisIndependentevaluatorArtificial Analysisvariantv2.1reasoning_efforthighconditions differ across rows → partially comparable6non-primary groupobs. 11 Sept 2026artificialanalysis.aiT2
Terminal-Benchagentic · accuracy · variant=v4.0 · evaluator=Artificial AnalysisIndependentevaluatorArtificial Analysisvariantv4.0reasoning_effortxhighconditions differ across rows → partially comparable6non-primary groupobs. 11 Sept 2026artificialanalysis.aiT2
LiveBench Agentic Codingcoding · average score · variant=Agentic CodingOfficial boardvariantAgentic Codingrelease2026-06-251−19.9 ptvs DeepSeek-V4.1-Flash25 Jun 2026livebench.aiT2
LiveBench Codingcoding · average score · variant=CodingOfficial boardvariantCodingrelease2026-06-251−6.02 ptvs Claude Fable 5.125 Jun 2026livebench.aiT2
SciCodecoding · accuracy · evaluator=Artificial AnalysisIndependentevaluatorArtificial Analysis6−6.60 ptvs Claude Fable 5.1obs. 11 Sept 2026artificialanalysis.aiT2
Artificial Analysis Intelligence Indexcomposite · indexIndependentversion4.36−0.56vs Claude Fable 5.1obs. 11 Sept 2026artificialanalysis.aiT2
LiveBenchgeneral · global_averageOfficial boardrelease2026-06-251−1.25 ptvs Claude Fable 5.125 Jun 2026livebench.aiT2
LiveBench Data Analysisgeneral · average score · variant=Data AnalysisOfficial boardvariantData Analysisrelease2026-06-251current leader25 Jun 2026livebench.aiT2
LiveBench Languagegeneral · average score · variant=LanguageOfficial boardvariantLanguagerelease2026-06-251−1.25 ptvs Claude Fable 525 Jun 2026livebench.aiT2
LiveBench Instruction Followinginstruction-following · average score · variant=IFOfficial boardvariantIFrelease2026-06-251−5.83 ptvs Gemini 3.8 Flash25 Jun 2026livebench.aiT2
Humanity's Last Examknowledge · accuracy · evaluator=Artificial AnalysisIndependentevaluatorArtificial Analysis6−4.45 ptvs Claude Fable 5.1obs. 11 Sept 2026artificialanalysis.aiT2
LiveBench Mathematicsmath · average score · variant=MathematicsOfficial boardvariantMathematicsrelease2026-06-251−0.20 ptvs Claude Fable 5.125 Jun 2026livebench.aiT2
MMMU-Promultimodal · accuracy · evaluator=Artificial AnalysisIndependentevaluatorArtificial Analysis6current leaderobs. 11 Sept 2026artificialanalysis.aiT2
GPQA Diamondreasoning · accuracy · variant=GPQA Diamond · evaluator=Artificial AnalysisIndependentevaluatorArtificial AnalysisvariantGPQA Diamondreasoning_effortxhighconditions differ across rows → partially comparable6current leaderobs. 11 Sept 2026artificialanalysis.aiT2
LiveBench Reasoningreasoning · average score · variant=ReasoningOfficial boardvariantReasoningrelease2026-06-251current leader25 Jun 2026livebench.aiT2

Current rows only, grouped by benchmark → canonical metric → comparability group (task configuration). Effort variants folded into this model appear as rows of the same group. 50 current rows in total. “vs leader” compares with the current leader of the benchmark's primary group only; other groups are not directly comparable. Comparability rules →

Providers & Pricing3

All offers in the price terminal →
Provider deployments, cheapest output first
ProviderContextInput / 1MCached inCache writeOutput / 1MBatch in / outNative unitsStatusObservedSource
OpenAI APIcheapest outputopenai/gpt-6-astra:batch1.05Mout 128K$0.50$6.25——active2 h agosince 11 Sept 2026openrouter.aiT2
OpenAI APIopenai/gpt-6-astra1.05Mout 128K$1$12.5——active2 h agosince 11 Sept 2026openrouter.aiT2
OpenAI APIgpt-6-astra—$1$12.5$5 / $25flex_input_per_mtok=5flex_output_per_mtok=25fast_mode_input_per_mtok=20+5active3 h agosince 11 Sept 2026developers.openai.comT1

USD per 1M tokens as published by each provider; native units (per-request fees, flex/priority tiers) are kept verbatim. Rows are append-only — every price change is kept in the history below. Cost of a workload →

Price history

Step lines per provider; amber markers are recorded changes. Click a marker or a row for the evidence behind that price.

Output price · USD / 1M tokens 1 provider

Output price history of gpt-6-astra$0$20$40$60Sept 26Sept 26Sept 26OpenAI API: first observed → $50 · 11 Sept 2026OpenAI API: $50 → $25 · 11 Sept 2026
  • OpenAI API
  • OpenAI API$50 → $2511 Sept 2026
  • OpenAI APIfirst observed $5011 Sept 2026

Input price · USD / 1M tokens 1 provider

Input price history of gpt-6-astra$0$2$4$6$8$10$12Sept 26Sept 26Sept 26OpenAI API: first observed → $10 · 11 Sept 2026OpenAI API: $10 → $5 · 11 Sept 2026
  • OpenAI API
  • OpenAI API$10 → $511 Sept 2026
  • OpenAI APIfirst observed $1011 Sept 2026

Versions & Artifacts0

Version history

Context window1 change

11 Sept 2026→11 Sept 2026current

Knowledge cutofffirst observation only

11 Sept 2026current

Max outputfirst observation only

11 Sept 2026current

Opennessfirst observation only

11 Sept 2026current

Each hop is a claim: click a value for its source, tier and observation time. Nothing is overwritten — a new observation closes the previous claim.

Artifacts 0

No artifact (checkpoint, quantisation, conversion or packaging) points to this model yet.

Change history24

Temporal, append-only claims: a new observation closes the previous claim instead of overwriting it. Rewind the record with the as-of picker.

Viewing AI Atlas as of 12 Sept 2026 — attributes exactly as the atlas knew them on that day; later corrections are not shown.

Back to today →

Attributes as of 12 Sept 2026 28 claims in force

Release date
4 Sept 2026
Openness
proprietary
Context window
1.05M tokens
Max output
128K tokens
Knowledge cutoff
Apr 2026
Modalities
image, text
Input modalities
text, image
Output modalities
text
Tokenizer
GPT
API model id
gpt-6-astra
Aa context window
1,000,000
Aa openness
proprietary
Capabilities
streaming, structured_outputs, function_calling, file_search, image_input, web_search, prompt_caching
Default snapshot
gpt-6-astra
File input
Yes
Fine-tuning available
No
Aa median output tokens per second
49.7
Openrouter id
openai/gpt-6-astra
Openrouter listed at
4 Sept 2026
Reasoning
No
Snapshots
gpt-6-astra
Structured output
Yes
Supported parameters
include_reasoning, max_completion_tokens, max_tokens, reasoning, reasoning_effort, response_format, seed, structured_outputs, tool_choice, tools
Tool calling
Yes
Vision
Yes
Weights available
No
24 claims · 23 properties1 conflicting

Release daterelease_date1

Claim history for Release date
ValueValid from → toStatusSourceConfidenceExtractor
4 Sept 2026 → currentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Opennessopenness1

Claim history for Openness
ValueValid from → toStatusSourceConfidenceExtractor
proprietary → currentcurrentOpenAI Platform docsT1highdeterministic

Context windowcontext_length1

Claim history for Context window
ValueValid from → toStatusSourceConfidenceExtractor
1.05M tokens → currentcurrentOpenAI Platform docsT1highdeterministic

Max outputmax_output_tokens1

Claim history for Max output
ValueValid from → toStatusSourceConfidenceExtractor
128K tokens → currentcurrentOpenAI Platform docsT1highdeterministic

Knowledge cutoffknowledge_cutoff1

Claim history for Knowledge cutoff
ValueValid from → toStatusSourceConfidenceExtractor
Apr 2026 → currentcurrentOpenAI Platform docsT1highdeterministic

Modalitiesmodalities1

Claim history for Modalities
ValueValid from → toStatusSourceConfidenceExtractor
image, text → currentcurrentOpenAI Platform docsT1highdeterministic

Input modalitiesmodalities_input2conflicting claims

Claim history for Input modalities
ValueValid from → toStatusSourceConfidenceExtractor
image, text → currentconflictingOpenRouter public model & pricing listingT2mediumdeterministic
text, image → currentcurrentOpenAI Platform docsT1conflicteddeterministic

Output modalitiesmodalities_output1

Claim history for Output modalities
ValueValid from → toStatusSourceConfidenceExtractor
text → currentcurrentOpenAI Platform docsT1highdeterministic

Tokenizertokenizer1

Claim history for Tokenizer
ValueValid from → toStatusSourceConfidenceExtractor
GPT → currentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

API model idapi_model_id1

Claim history for API model id
ValueValid from → toStatusSourceConfidenceExtractor
gpt-6-astra → currentcurrentOpenAI Platform docsT1highdeterministic

Official pageofficial_url1

Claim history for Official page
ValueValid from → toStatusSourceConfidenceExtractor
https://developers.openai.com/api/docs/models/gpt-6-astra → currentcurrentOpenAI Platform docsT1highdeterministic

Capabilitiescapabilities1

Claim history for Capabilities
ValueValid from → toStatusSourceConfidenceExtractor
streaming, structured_outputs, function_calling, file_search, image_input, web_search, prompt_caching → currentcurrentOpenAI Platform docsT1highdeterministic

Default snapshotdefault_snapshot1

Claim history for Default snapshot
ValueValid from → toStatusSourceConfidenceExtractor
gpt-6-astra → currentcurrentOpenAI Platform docsT1highdeterministic

Descriptiondescription1

Claim history for Description
ValueValid from → toStatusSourceConfidenceExtractor
Our most capable model, built for the hardest end-to-end work → currentcurrentOpenAI Platform docsT1highdeterministic

File inputfile_input1

Claim history for File input
ValueValid from → toStatusSourceConfidenceExtractor
Yes → currentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Fine-tuning availablefine_tuning_available1

Claim history for Fine-tuning available
ValueValid from → toStatusSourceConfidenceExtractor
No → currentcurrentOpenAI Platform docsT1highdeterministic

Openrouter idopenrouter_id1

Claim history for Openrouter id
ValueValid from → toStatusSourceConfidenceExtractor
openai/gpt-6-astra → currentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Reasoningreasoning1

Claim history for Reasoning
ValueValid from → toStatusSourceConfidenceExtractor
Yes → currentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Snapshotssnapshots1

Claim history for Snapshots
ValueValid from → toStatusSourceConfidenceExtractor
gpt-6-astra → currentcurrentOpenAI Platform docsT1highdeterministic

Structured outputstructured_output1

Claim history for Structured output
ValueValid from → toStatusSourceConfidenceExtractor
Yes → currentcurrentOpenAI Platform docsT1highdeterministic

Supported parameterssupported_parameters1

Claim history for Supported parameters
ValueValid from → toStatusSourceConfidenceExtractor
include_reasoning, max_completion_tokens, max_tokens, reasoning, reasoning_effort, response_format, seed, structured_outputs, tool_choice, tools → currentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Tool callingtool_calling1

Claim history for Tool calling
ValueValid from → toStatusSourceConfidenceExtractor
Yes → currentcurrentOpenAI Platform docsT1highdeterministic

Visionvision1

Claim history for Vision
ValueValid from → toStatusSourceConfidenceExtractor
Yes → currentcurrentOpenAI Platform docsT1highdeterministic

Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →

Provenance

Attributed facts

27

Source tiers

T1T217 / 10

Freshest observation

2 h ago

Conflicts

5 flagged

Source documents 6

Source documents
SourceDocumentTypeTierLast observedSnapshots
OpenAI Platform docsdevelopers.openai.com/api/docs/pricing.md pricingT1· Official1 h ago2
OpenAI Platform docsdevelopers.openai.com/api/docs/models.md model_docsT1· Official1 h ago1
OpenAI Platform docsdevelopers.openai.com/api/docs/models/gpt-6-astra.md model_pageT1· Official11 h ago1
OpenRouter public model & pricing listingopenrouter.ai/api/v1/models catalogueT2· Quality secondary2 h ago7
LiveBenchlivebench.ai/table_2026_06_25.csv leaderboardT2· Quality secondary9 h ago1
Artificial Analysisartificialanalysis.ai/leaderboards/models leaderboardT2· Quality secondary9 h ago1

Tier 1 = official/primary, 2 = quality secondary, 3 = community, 4 = unverified. Every snapshot is archived; see all sources and the methodology.

Data quality (77/100) measures how well AI Atlas knows this entity — completeness, primary-source ratio, freshness, conflicts — never how good the model is. Methodology →