Skip to main content
Radar

Five or fewer confirmed AI changes, with original sources, on mornings when something changed.A free source-linked morning brief.

See the free Radar Brief

GPT-6 Astra

CurrentReleased Sep 3, 2026ProprietaryReasoning1.05M context

Released Sep 3, 2026 see all recent releases

Decision reading
GPT-6 Astra scores 81.9 out of 100 and ranks #4 of 231. This profile shows 26 source-displayable benchmark rows; its strongest eligible category is Agentic at #23. API pricing is $10 input and $50 output per million tokens, with cached input at $1.

Data as of September 3, 2026 · How the score is built

Strongest published evidence

Agentic ranks #23. Particularly useful for coding agents, browser research, and computer-use workflows.

Validate before choosing

26 published rows leave some tracked benchmark slots empty. Independent runtime speed has not been measured.

Decision snapshot

Each value carries a field reference instead of floating alone. Markers compare this model with the current ranked and priced catalog; they are not absolute quality thresholds.

Capability

81.9/100

field median 59

#4 of 231 ranked models

Price

$10input / $50 output

input median $1

cached $1 · blended $30

Speed

Not measured

field median 91 tok/s

Time to first token not measured

Context

1.05Mtokens

field median 256,000

Maximum output length is tracked separately

Capability shape

Each axis shows percentile within that category’s eligible cohort. The comparison outline is the median of the six nearest public-score peers; a collapsed vertex means the category is not rank-eligible.

GPT-6 Astra category percentile values

  • Agentic85th percentile
  • Coding79th percentile
  • ReasoningNot eligible
  • KnowledgeNot eligible
  • MathNot eligible
  • MultilingualNot eligible
  • MultimodalNot eligible
  • Instruction followingNot eligible

The dashed outline is median of 6 nearest peers.

Eligible category ranks

  1. Agentic#23/144
  2. Coding#32/149
  3. ReasoningNot ranked
  4. KnowledgeNot ranked
  5. MathNot ranked
  6. MultilingualNot ranked
  7. MultimodalNot ranked
  8. Inst. FollowingNot ranked
Top decileTop quartileMid-fieldNot eligible

What it costs to get this score

Published API price against the public score. The x-axis uses a log scale; the dashed path marks models that are not beaten by a cheaper, higher-scoring option. Price uses average of published input and output rates.

Explore all models

The chart opens on the current model. Scroll horizontally to inspect the full price axis.

Current modelGPT-6 Astra · 81.9 score · $30 blended per million tokens
405060708090$0.50$1$5$10$25↘ frontierGPT-6 Astra

Horizontal: blended price per million tokens, log scale · Vertical: public score

How much of this is verified

Coverage is split by category so a strong number never hides a thin evidence base. Verified means the row is tied to a published source; provisional rows remain visible but separate.

  1. Agentic5/5 verified
  2. Coding1/1 verified
  3. Reasoning4/4 verified
  4. Knowledge4/4 verified
  5. Math1/1 verified
  6. MultilingualNot measured
  7. Multimodal1/1 verified
  8. Inst. FollowingNot measured
Verified sourceProvisionalNot measured

Spec sheet

Each documented value carries its source. Missing fields stay visible as not sourced or not published, rather than disappearing from the page.

Maximum output
Not sourced yet
Knowledge cutoff
Not sourced yet
Input modalities
text, imageOpenAI GPT-6 Astra model documentation
Parameters
Not disclosed by the provider
Availability
OpenAI Responses API · ChatGPT Plus, Pro, Business, and EnterpriseOpenAI GPT-6 Astra model documentation
Cloud regions
Not tracked yet
API capabilities
reasoning.effort low through max · 128K max output tokens · async tool calling · mid-turn steeringOpenAI GPT-6 Astra model documentation
Prompt caching
Published at $1 per million cached input tokensOpenAI GPT-6 Astra model documentation
Self-host
Weights are not published
Rate limits
Not tracked yet

Category score record

Scores and ranks appear only where published evidence can be displayed. The table keeps the score, weight, cohort, and evidence state together.

Category scores, ranks, weighting, benchmark coverage, and evidence status
CategoryScore
AgenticRank #23 of 144Percentile 85thWeight 22%5 benchmarksVerified59.5
CodingRank #32 of 149Percentile 79thWeight 20%1 benchmarkVerified62.1
ReasoningRank Not rankedWeight 17%4 benchmarksVerified85.2
KnowledgeRank Not rankedWeight 12%4 benchmarksVerified85.9
MathRank Not rankedWeight 5%1 benchmarkVerified85.2
MultilingualWeight 7%0 benchmarksNot measuredNot measured
MultimodalWeight 12%1 benchmarkVerifiedScore pending
Inst. FollowingWeight 5%0 benchmarksNot measuredNot measured

Benchmark ledger

Coding opens by default. The marker compares each value with the best source-verified result in the catalog; provisional leaders do not set the reference. Expand the remaining categories for every published row.

Coding1 row
Coding benchmark values, best verified comparison, weight, and source status
deepSweScore74.1%Versus best verified row

Best verified: Muse Spark 1.3 · 75.4%

Gap1.3 behindWeightDisplay only
Provider exact
Agentic5 rows
Agentic benchmark values, best verified comparison, weight, and source status
OSWorld 2.0Score72.6%Versus best verified row

Best verified: GPT-6 Astra · 72.6%

GapBest verifiedWeightDisplay only
Provider exact
Terminal-Bench 4.0Score57.70%Versus best verified row

Best verified: Claude Mythos 5.1 · 60.90%

Gap3.2 behindWeightDisplay only
Provider exact
Terminal-Bench-Science 0.1Score64.6%Versus best verified row

Best verified: GPT-6 Astra · 64.6%

GapBest verifiedWeightDisplay only
Provider exact
ExploitGymScore42.4%Versus best verified row

Best verified: GPT-6 Astra · 42.4%

GapBest verifiedWeightDisplay only
Provider exact
Agents' Last ExamScore59.3%Versus best verified row

Best verified: GPT-6 Astra · 59.3%

GapBest verifiedWeightDisplay only
Provider exact
Reasoning4 rows
Reasoning benchmark values, best verified comparison, weight, and source status
ARC-AGI-2Abstraction and Reasoning Corpus for AGI v2Score95%Versus best verified row

Best verified: GPT-6 Astra · 95%

GapBest verifiedWeightWeighted 31%
ARC-AGI-3Abstraction and Reasoning Corpus for AGI v3Score62.7%Versus best verified row

Best verified: GPT-6 Astra · 62.7%

GapBest verifiedWeightDisplay only
MRCR v2 256K-512KOpenAI MRCR v2 8-needle 256K-512KScore100.0%Versus best verified row

Best verified: GPT-6 Astra · 100.0%

GapBest verifiedWeightDisplay only
Provider exact
MRCR v2 512K-1MOpenAI MRCR v2 8-needle 512K-1MScore96.3%Versus best verified row

Best verified: Muse Spark 1.3 · 98.1%

Gap1.8 behindWeightDisplay only
Provider exact
Knowledge4 rows
Knowledge benchmark values, best verified comparison, weight, and source status
GPQAGraduate-Level Google-Proof Q&AScore96%Versus best verified row

Best verified: GPT-6 Astra · 96%

GapBest verifiedWeightWeighted 7%
Provider exact
GPQA-DGPQA DiamondScore96.0%Versus best verified row

Best verified: GPT-6 Astra · 96.0%

GapBest verifiedWeightDisplay only
Provider exact
HealthBench ProfessionalScore63.4%Versus best verified row

Best verified: GPT-6 Astra · 63.4%

GapBest verifiedWeightDisplay only
HealthBench HardScore36.3%Versus best verified row

Best verified: Muse Spark · 42.8%

Gap6.5 behindWeightDisplay only
Math1 row
Math benchmark values, best verified comparison, weight, and source status
FrontierMath v2 (Tier 4)FrontierMath v2 Tier 4Score97.600%Versus best verified row

Best verified: GPT-6 Astra · 97.600%

GapBest verifiedWeightWeighted 10%
Provider exact
Multimodal1 row
Multimodal benchmark values, best verified comparison, weight, and source status
ScreenSpot ProScore92.7%Versus best verified row

Best verified: GPT-6 Astra · 92.7%

GapBest verifiedWeightDisplay only
Provider exact
External signals10 rows
External signals benchmark values, best verified comparison, weight, and source status
ExploitBenchExploitBench v8-benchScore100%Versus best verified row

Best verified: GPT-6 Astra · 100%

GapBest verifiedWeightDisplay only
SRE-BenchSRE-Bench binary reverse engineeringScore88.0%Versus best verified row

Best verified: GPT-6 Astra · 88.0%

GapBest verifiedWeightDisplay only
Provider exact
FrontierCyberScore38.1%Versus best verified row

Best verified: GPT-6 Astra · 38.1%

GapBest verifiedWeightDisplay only
CyScenarioBench successCyScenarioBench Average Success RateScore59%Versus best verified row

Best verified: GPT-6 Astra · 59%

GapBest verifiedWeightDisplay only
CyScenarioBench solvedCyScenarioBench Scenarios Ever SolvedScore9%Versus best verified row

Best verified: GPT-6 Astra · 9%

GapBest verifiedWeightDisplay only
Atomic network attacksAtomic Network Attack SimulationScore100%Versus best verified row

Best verified: GPT-5.5 · 100%

GapBest verifiedWeightDisplay only
Atomic vulnerability researchAtomic Vulnerability Research and ExploitationScore100%Versus best verified row

Best verified: GPT-6 Astra · 100%

GapBest verifiedWeightDisplay only
Atomic evasionAtomic EvasionScore52%Versus best verified row

Best verified: GPT-5.6 Sol · 56%

Gap4 behindWeightDisplay only
ACCR standardAdvanced Cyber Completion Rate — Standard AccessScore3.5%Versus best verified row

Best verified: GPT-6 Astra · 3.5%

GapBest verifiedWeightDisplay only
ACCR Daybreak BlueAdvanced Cyber Completion Rate — Daybreak BlueScore3.5%Versus best verified row

Best verified: GPT-6 Astra · 3.5%

GapBest verifiedWeightDisplay only

Lineage

The sequence follows explicit supersedes links. A successor's displayed score stays at least 0.1 points above its predecessor; raw benchmark rows do not move. Scores and prices remain blank when the corresponding public row or first-party rate is unavailable.

  1. Mar 5, 2026

    GPT-5.4

    Score 72.9 · $2.5 / $15

  2. Apr 23, 2026

    GPT-5.5

    Score 73.0 · $5 / $30

  3. Jul 9, 2026

    GPT-5.6 Sol

    Score 81.8 · $5 / $30

  4. Sep 3, 2026 · you are here

    GPT-6 Astra

    Score 81.9 · $10 / $50

astra · astra

How to read this profile

The visual layer above carries the decisions. These notes preserve the model, ranking, coverage, and family context behind the numbers.

GPT-6 Astra ranks #4 of 231 on the public leaderboard with a score of 81.88/100. It does not yet have enough sourced coverage for a verified position.

GPT-6 Astra is a proprietary model with a 1.05M context window. It uses an explicit reasoning mode, which can improve complex problem solving while adding latency and token use.

Rolling out as gpt-6-astra to enterprises in OpenAI's Trusted Access Program first, with API access and ChatGPT Plus, Pro, Business, and Enterprise access following in the coming days. OpenAI classifies Astra as Critical for cybersecurity under its Preparedness Framework and ships it with strengthened cyber safeguards and misalignment monitoring.

Official exact-value snapshot from OpenAI's September 3, 2026 GPT-6 Astra launch table and system card, supplemented by ARC Prize verified results and Irregular's independent cyber assessment. The launch table publishes GPQA Diamond, FrontierMath v2 Tier 4, OSWorld 2.0, Terminal-Bench 4.0, Terminal-Bench-Science 0.1, DeepSWE v1.1, ScreenSpot-Pro, Agents' Last Exam, ExploitGym, ExploitBench, SRE-Bench, and OpenAI MRCR v2 8-needle; the system card adds length-adjusted HealthBench Professional and HealthBench Hard plus Daybreak ACCR rows. OpenAI did not publish SWE-Bench Pro, Terminal-Bench 2.x, or FrontierMath Tiers 1-3 for Astra, so the weighted backbone stays sparse: the provisional lane keeps the row unranked and the bench-align v5 lane treats it as an estimated successor of GPT-5.6 Sol until independent benchmark-owner rows arrive. ARC-AGI rows use ARC Prize's standard-harness Max results; the near-saturating ARC-AGI-3 adapter-harness figure is noted in provenance only. Cyber rows remain display-only.

Its explicit predecessor is GPT-5.6 Sol. 26 of 417 tracked benchmark slots currently have displayable evidence. Missing categories stay blank.

Its strongest eligible category is Agentic at #23, while its lowest eligible position is Coding at #32. particularly useful for coding agents, browser research, and computer-use workflows.

Radar

GPT-6 Astra release history

Full release history

Radar confirmed these at the source. Already tracking GPT-6 Astra? See the free Radar Brief for what changes next.

Frequently asked questions

How does GPT-6 Astra perform overall in AI benchmarks?

GPT-6 Astra ranks #4 out of 231 models on the public BenchAlign leaderboard, with a score of 81.88/100. Its evidence status is Estimated, and this profile shows 26 source-displayable benchmark rows. The label describes evidence depth, not a provider quality claim; inspect category rows before choosing a workload.

Is GPT-6 Astra good for knowledge and understanding?

GPT-6 Astra has source-displayable benchmark coverage for knowledge and understanding, but the public category table does not assign it a rank there. The individual rows remain available for inspection. A missing category position means the evidence threshold was not met; it does not convert the model's unmeasured work into a zero.

Is GPT-6 Astra good for coding and programming?

GPT-6 Astra ranks #32 out of 149 eligible models for coding and programming, with a public category score of 62.1/100. Higher-ranked alternatives are available for workloads where this category decides the choice. Check the underlying rows before treating the aggregate as a workload guarantee.

Is GPT-6 Astra good for mathematics?

GPT-6 Astra has source-displayable benchmark coverage for mathematics, but the public category table does not assign it a rank there. The individual rows remain available for inspection. A missing category position means the evidence threshold was not met; it does not convert the model's unmeasured work into a zero.

Is GPT-6 Astra good for reasoning and logic?

GPT-6 Astra has source-displayable benchmark coverage for reasoning and logic, but the public category table does not assign it a rank there. The individual rows remain available for inspection. A missing category position means the evidence threshold was not met; it does not convert the model's unmeasured work into a zero.

Is GPT-6 Astra good for agentic tool use and computer tasks?

GPT-6 Astra ranks #23 out of 144 eligible models for agentic tool use and computer tasks, with a public category score of 59.5/100. Higher-ranked alternatives are available for workloads where this category decides the choice. Check the underlying rows before treating the aggregate as a workload guarantee.

Is GPT-6 Astra good for multimodal and grounded tasks?

GPT-6 Astra has source-displayable benchmark coverage for multimodal and grounded tasks, but the public category table does not assign it a rank there. The individual rows remain available for inspection. A missing category position means the evidence threshold was not met; it does not convert the model's unmeasured work into a zero.

Does GPT-6 Astra have full benchmark coverage on BenchLM?

No. GPT-6 Astra currently has 43 source-displayable rows across 417 tracked benchmark slots. The profile exposes published, non-generated evidence and leaves missing categories blank until an exact evaluation is available. Coverage describes how much was measured; it is not a penalty added to an individual benchmark result.

What is the context window size of GPT-6 Astra?

GPT-6 Astra has a documented context window of 1.05M. That figure is the maximum combined prompt and retained-conversation space reported for this exact model; it is not the maximum output length. The profile keeps output limits separate because providers often publish those limits independently.

Compare GPT-6 Astra with every tracked model410 comparisons

Last updated September 3, 2026. Runtime fields remain blank until a sourced snapshot exists.

Watch GPT-6 Astra in the weekly brief

Get one weekly email when material rank, price, availability, or benchmark evidence changes are worth revisiting.

Read a sample issue

Join 2,000+ readers.