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OpenRouter model

OpenAI: GPT-5 Pro

GPT-5 Pro is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and...

Provider
OpenRouter
Availability
Available
Model ID
openai/gpt-5-pro
Snapshot
2026-10-07
Evaluation Verdict

OpenAI GPT-5-pro represents OpenAI's highest-tier frontier model (74.2% SWE-bench, 94.6% AIME, 1430 Coding Elo), providing exhaustive multi-step reasoning for mission-critical engineering.

OpenAI: GPT-5 Pro Benchmarks & Agentic Accuracy

Verified primary research & developer preference metrics

Primary Sources Verified
SWE-bench Verified
74.2%
Extended ReasoningOpenAI Frontier Paper ↗
LiveCodeBench
78.5%
ThinkingLiveCodeBench ↗
LMSYS Coding Elo
1430Elo
Coding ArenaLMSYS Arena ↗
AIME 2024 / 2025
94.6%
Extended ReasoningOpenAI Frontier Paper ↗
Pricing ($ / 1M tokens)
$5/ $20
$1 cached readStandard API Pricing

What This Means in Real Software Development

  • Elite mathematical and reasoning scores: 94.6% on AIME 2024 and 86.4% on GPQA Diamond.
  • 74.2% SWE-bench Verified pass rate with deep verification passes on complex GitHub repos.
  • Unflinching accuracy when dealing with high-concurrency protocols, database engines, and kernel interfaces.
  • Best reserved as the Lead Primary Planner for large refactors and architectural designs.

Swarm Multi-Agent Topology

Tier 1: Frontier Principal ArchitectRole: Primary / Planner

Best Paired With: Gemini 3.8 Flash for subagent swarms

High-confidence planning ensures complex Task Program graphs execute with zero dependency failures.

Git Worktree Isolation Advantage:

Supervises worktree integrations and validates commit diffs before merging to main.

What Developers & Practitioners Are Saying

Real-world field observations, production strengths, and developer consensus

Field Consensus

"OpenAI's flagship enterprise engineering model. Delivers authoritative systems architecture, robust tool orchestration, and high-fidelity code generation."

Verified Real-World Strengths

  • 74.2% SWE-bench Verified with zero-drift long-horizon execution
  • Massive knowledge retrieval and cross-language translation fidelity
  • Native support for complex tool calling and workspace integration

Production Caveats & Gaps

  • Premium pricing tier
  • Requires structured subagent decomposition to avoid single-prompt context bloat
Benchmark Reality Check

What the benchmark tests: Tests end-to-end software engineering in enterprise environments.

Production caveat: Needs clean repository context to prevent irrelevant search noise from polluting output.

Primary Sources & Methodology Citations

OpenAI: GPT-5 Pro model overview

OpenAI: GPT-5 Pro 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
400K tokens
Thinking support
high
Availability status
Available
Catalog ID
openrouter/openai/gpt-5-pro
  • File input
  • Image input
  • Text input
  • Text output
  • Reasoning
  • Tools
  • Structured output
  • JSON

Run OpenAI: GPT-5 Pro in Swarm

Verified CLI workflow & multi-agent architecture

Quickstart Guide →
bash — swarm run
$swarm ctl model set --provider openrouter --model openrouter/openai/gpt-5-pro

# Or switch interactively inside the terminal TUI:

>/models

Subagent Role Matrix

Assign OpenAI: GPT-5 Pro 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.
System Agent Roles →Why Swarm Architecture →
← All OpenRouter models

Public catalog snapshot. Catalog availability is not a real-time provider status or an access guarantee.