swarmagent.dev
GitHub
DocsModelsResourcesPricingNewsContactGitHub

OpenRouter model

Google: Gemini 3.5 Flash

Gemini 3.5 Flash is Google's high-efficiency multimodal model, bringing near-Pro level coding and reasoning at Flash-tier cost and speed. It is highly optimized for coding proficiency and parallel agentic execution...

Provider
OpenRouter
Availability
Available
Model ID
google/gemini-3.5-flash
Snapshot
2026-10-07
Evaluation Verdict

Gemini 3.5 Flash delivers 63.8% on SWE-bench Verified combining lightning-fast AST indexing with proven long-context stability across 1M tokens.

Google: Gemini 3.5 Flash Benchmarks & Agentic Accuracy

Verified primary research & developer preference metrics

Primary Sources Verified
SWE-bench Verified
63.8%
Thinking (Low)Google DeepMind Report ↗
LiveCodeBench
47%
ThinkingLiveCodeBench ↗
LMSYS Coding Elo
1345Elo
Coding ArenaLMSYS Arena ↗
AIME 2024 / 2025
74.5%
ThinkingGoogle DeepMind Report ↗
Pricing ($ / 1M tokens)
$0.15/ $0.6
$0.025 cached readStandard API Pricing

What This Means in Real Software Development

  • High throughput provides instant feedback in CLI and TUI sessions.
  • Solid 63.8% SWE-bench Verified score at ultra-low $0.15/M token pricing.
  • High reliability for symbol grep, multi-file edits, and automated unit test runs.
  • Full 1M token context window preserves build logs without truncation.

Swarm Multi-Agent Topology

Tier 3: Rapid Subagent WorkerRole: Finder Subagent

Best Paired With: Claude 3.7 Sonnet as Lead Planner

High throughput and low cost make it ideal for repository indexing, AST search, and fast unit test runs.

Git Worktree Isolation Advantage:

Executes parallel discovery jobs across multiple worktrees concurrently.

What Developers & Practitioners Are Saying

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

Field Consensus

"Early high-speed Flash checkpoint that demonstrated the viability of sub-$0.10/M tokens for agentic workflows."

Verified Real-World Strengths

  • Extremely low cost and fast generation speed
  • Good basic language and syntax translation

Production Caveats & Gaps

  • Lower SWE-bench score (35.0%) than modern 3.8 Flash
Benchmark Reality Check

What the benchmark tests: Measures basic coding comprehension and fast response times.

Production caveat: Superseded by Gemini 3.8 Flash for active engineering work.

Primary Sources & Methodology Citations

Google: Gemini 3.5 Flash model overview

Google: Gemini 3.5 Flash 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
Availability status
Available
Catalog ID
openrouter/google/gemini-3.5-flash
  • Audio input
  • File input
  • Image input
  • Text input
  • Video input
  • Text output
  • Reasoning
  • Tools
  • Structured output
  • JSON

Run Google: Gemini 3.5 Flash in Swarm

Verified CLI workflow & multi-agent architecture

Quickstart Guide →
bash — swarm run
$swarm ctl model set --provider openrouter --model openrouter/google/gemini-3.5-flash

# Or switch interactively inside the terminal TUI:

>/models

Subagent Role Matrix

Assign Google: Gemini 3.5 Flash 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.