OpenRouter model
OpenAI: GPT-6 Astra
GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work. It is suited for advanced analysis, software engineering, deep research, scientific work, and document creation, with particular strengths in long-horizon...
- Provider
- OpenRouter
- Availability
- Available
- Model ID
- openai/gpt-6-astra
- Snapshot
- 2026-10-07
OpenAI: GPT-6 Astra Benchmarks & Agentic Accuracy
Verified primary research & developer preference metrics
What This Means in Real Software Development
- Surpasses 82% on SWE-bench Verified, resolving over 8 out of 10 complex real-world software bugs autonomously.
- 97.0% AIME score represents near-flawless mathematical and logical deduction.
- End-to-end self-verifying architecture generates and executes test matrices across multiple containers.
- Supreme planner for complex multi-phase, cross-subsystem migrations.
Swarm Multi-Agent Topology
Best Paired With: Gemini 3.8 Flash for subagent execution
High-confidence planning eliminates architectural failures and directs complex Task Programs flawlessly.
Supervises multi-agent worktree execution with formal verification.
What Developers & Practitioners Are Saying
Real-world field observations, production strengths, and developer consensus
"Autonomous multi-agent frontier model with native parallel reasoning tracks, designed specifically for distributed swarms."
Verified Real-World Strengths
- 82.0% SWE-bench Verified with native DAG execution awareness
- Ultra-clean unified diff generation with zero whitespace drift
- Instant context switching across multiple concurrent worktrees
Production Caveats & Gaps
- High token consumption during autonomous multi-agent planning
- Requires disciplined human-in-the-loop review gates for production deploys
Primary Sources & Methodology Citations
- GPT-6 Astra: Milestone Autonomous Reasoning — OpenAI (May 2026)
Head-to-Head Frontier Comparisons: OpenAI: GPT-6 Astra vs Rivals
Standardized, side-by-side benchmark & economics comparison against peer models
| Model | Role / Tier | SWE-bench | LiveCodeBench | LMSYS Elo | AIME | Input / Output |
|---|---|---|---|---|---|---|
OpenAI: GPT-6 AstraOpenRouterCurrent | Tier 1: Autonomous Chief Architect | 82% | 84.5% | 1470 | 97% | $6 / $24 |
Claude Fable 5.1Anthropic Compare OpenAI: GPT-6 Astra vs Claude Fable 5.1 → | Tier 1: Frontier Agentic Lead | 76.2% | 67.4% | 1435 | — | $6 / $30 |
Muse Spark 1.3Meta Compare OpenAI: GPT-6 Astra vs Muse Spark 1.3 → | Tier 1: High-Speed Frontier Coder | 74.8% | 66.2% | 1420 | — | $1.2 / $6 |
xAI Grok 4.20xAI Compare OpenAI: GPT-6 Astra vs xAI Grok 4.20 → | Tier 1: Frontier Systems Specialist | 58.5% | 54.2% | 1375 | 76% | $2 / $8 |
OpenAI GPT-6 SolOpenAI Compare OpenAI: GPT-6 Astra vs OpenAI GPT-6 Sol → | Tier 1: Frontier Generalist | 75.1% | 65.8% | 1415 | — | $2.5 / $12.5 |
OpenAI: GPT-6 Astra model overview
OpenAI: GPT-6 Astra is listed in the public Swarm catalog through OpenRouter. This page summarizes the verified catalog fields used by Swarm without claiming real-time access for every provider account.
- Provider
- OpenRouter
- Family
- OpenRouter
- Context window
- 1.05M tokens
- Thinking support
- low · medium · high · xhigh · max
- Availability status
- Available
- Catalog ID
- openrouter/openai/gpt-6-astra
Run OpenAI: GPT-6 Astra in Swarm
Verified CLI workflow & multi-agent architecture
swarm ctl model set --provider openrouter --model openrouter/openai/gpt-6-astra# Or switch interactively inside the terminal TUI:
/modelsSubagent Role Matrix
Assign OpenAI: GPT-6 Astra to specialized system roles in ~/.swarm/config.json:
- Primary / Planner: Orchestrates full task DAGs and multi-stage pipelines.
- Coder Subagent: Generates code and unit tests inside private Git worktrees.
- Finder Subagent: Performs read-only code search, symbol discovery, and mapping.
Public catalog snapshot. Catalog availability is not a real-time provider status or an access guarantee.