Claude Opus 4.6 vs Gemini 1.5 Flash

Name: Gemini 1.5 Flash
Brand: Google Vertex AI
Price: 0.075000 USD

Claude Opus 4.6 vs Gemini 1.5 Flash: Gemini 1.5 Flash is cheaper by 99% on average. Claude Opus 4.6 from Azure AI Foundry (200,000-token context, reasoning, tool calls) vs. Gemini 1.5 Flash from Google Vertex AI (1,000,000-token context, tool calls). Use Agent Command Center to A/B both in shadow mode and pick the winner per workload.

Side-by-side cost

Live workload comparison

Same workload run through both models. The cheaper one is highlighted.

Input tokens / request3,000

01,000,000

Output tokens / request400

0128,000

Requests / day5,000

01,000,000

Claude Opus 4.6

Azure AI Foundry

$3,805/mo

Input $5.00/M · Output $25.00/M

Gemini 1.5 FlashCheaper

Google Vertex AI

$52.50/mo

Input $0.0750/M · Output $0.300/M

At this workload, Gemini 1.5 Flash is 99% cheaper than Claude Opus 4.6 — a savings of $3,752/month ($45,026/year).

Production recipe — Agent Command Center

strategy: cost-optimized
primary:
  model: gemini-1-5-flash
  provider: vertex-ai
fallback:
  model: claude-opus-4-6
  provider: azure-ai-foundry
shadow: { sample_rate: 0.05 }   # mirror 5% of traffic to compare quality live

Get started free →Routing docs ↗

	Claude Opus 4.6 Azure AI Foundry	Gemini 1.5 Flash Google Vertex AI
Input price	$5.00/M	$0.0750/M
Output price	$25.00/M	$0.300/M
Context window	200,000	1,000,000
Max output	128,000	8,192
Function calling	✓	✓
Vision	✓	✓
Audio input	—	—
Reasoning	✓	—
Prompt caching	✓	—
Structured output	✓	✓
Pricing verified	May 12, 2026	May 7, 2026