Claude Opus 5 vs Gemini Omni 1.1 Flash

Price, context window & benchmark comparison

Anthropic

Claude Opus 5

Anthropic
$5.00 / $25.00
Input / Output · per 1M tokens
VS
Google

Gemini Omni 1.1 Flash

Google
$1.50 / $9.00
Input / Output · per 1M tokens
Compare different models
Anthropic
Google
Verdict: Gemini Omni 1.1 Flash is 3.0× cheaper than Claude Opus 5 on a typical 3:1 input/output mix. Claude Opus 5 has the larger context window (1M vs 131K).
Claude Opus 5Gemini Omni 1.1 Flash
Input price / 1M$5.00$1.50
Output price / 1M$25.00$9.00
Blended price (3:1)$10.00$3.38
Cached input / 1M$0.50—
Context window1M131K
Max output128K66K
Intelligence index44.2—
Coding index78—
Providers111
Best provider uptime (30m)100.0%100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesNo
Released2026-07-242026-11-04
Retirement——

Cost calculator

FAQ

Which is cheaper, Claude Opus 5 or Gemini Omni 1.1 Flash?

Gemini Omni 1.1 Flash is 3.0× cheaper than Claude Opus 5 on a typical 3:1 input/output mix.

Claude Opus 5 vs Gemini Omni 1.1 Flash: which has a bigger context window?

Claude Opus 5: 1,000,000 tokens. Gemini Omni 1.1 Flash: 131,072 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Claude Opus 5 ≈ $22,500, Gemini Omni 1.1 Flash ≈ $7,500.

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