Claude Sonnet 4.6 vs Gemini 2.5 Flash: Pricing and Specs
Claude Sonnet 4.6 $3 / $15 vs Gemini 2.5 Flash $0.30 / $2.50 per 1M tokens in / out.
| Claude Sonnet 4.6 | Gemini 2.5 Flash | |
|---|---|---|
| Maker | Anthropic | |
| Input, per 1M tokens | $3 | $0.30 |
| Output, per 1M tokens | $15 | $2.50 |
| Context window | 1M tokens claude.com | 1,048,576 input tokens google.dev |
| Max output | 128K tokens claude.com | 65,536 tokens google.dev |
| Input types | Text, Image claude.com | Text, Image, Video, Audio google.dev |
| Output types | Text claude.com | Text google.dev |
| Released | Feb 17, 2026 claude.com | Jun 17, 2025 google.com |
| Shutdown | Not published in the docs we read | Dec 1, 2026, replaced by gemini-3.5-flash-lite google.com |
| Retirement | Not sooner than February 17, 2027 claude.com | Not published in the docs we read |
| Price checked | Nov 9, 2026 claude.com | Nov 9, 2026 google.dev |
| Tracked changes | 0 | 1 |
Facts side by side from each maker's own pages. No score and no verdict.
Recent changes
Announced, not in effect yet
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Questions
Which is cheaper, Claude Sonnet 4.6 or Gemini 2.5 Flash
By listed price, Gemini 2.5 Flash is lower: $0.30 vs $3 per 1M input tokens. Price is the only thing this answer compares.
What do 1M input and 1M output tokens cost on each
Claude Sonnet 4.6: $18. Gemini 2.5 Flash: $2.80. Listed standard prices, before caching or batch discounts.
What context window does each have
Claude Sonnet 4.6: 1M tokens. Gemini 2.5 Flash: 1,048,576 input tokens. From each maker's docs.
Who makes Claude Sonnet 4.6 and Gemini 2.5 Flash
Claude Sonnet 4.6 is made by Anthropic. Gemini 2.5 Flash is made by Google.