Anthropic: Claude Sonnet 4.5 vs Google: Gemini 2.5 Pro Preview 06-05

Side-by-side specs, pricing, and benchmarks. Pick a winner for your team's use case.

Use it in a Space

Spin up a Switchy Space with either model — your whole team @-mentions it with shared context, pooled credits, one memory.

Pricing
Anthropic: Claude Sonnet 4.5Google: Gemini 2.5 Pro Preview 06-05
Input $/Mtok$3.00 · $1.25
Output $/Mtok$15.00 · $10.00
Context window
Anthropic: Claude Sonnet 4.5Google: Gemini 2.5 Pro Preview 06-05
Anthropic: Claude Sonnet 4.51000K tokens
Google: Gemini 2.5 Pro Preview 06-051049K tokens

Bars use square-root scaling so a 1M-token window doesn't crush a 200K one.

Release timeline
Anthropic: Claude Sonnet 4.5Google: Gemini 2.5 Pro Preview 06-05
2025-09-29
2025-06-05
2025-05-06today

Anthropic: Claude Sonnet 4.5

Provider
anthropic
Context
1000k
Input $/Mtok
$3.00
Output $/Mtok
$15.00
Max output
64000
Modalities
text, image, file

Google: Gemini 2.5 Pro Preview 06-05

Provider
google
Context
1049k
Input $/Mtok
$1.25
Output $/Mtok
$10.00
Max output
65536
Modalities
file, image, text, audio

Price delta

Anthropic: Claude Sonnet 4.5 is $1.75/Mtok more expensive than Google: Gemini 2.5 Pro Preview 06-05 on input. Output: Anthropic: Claude Sonnet 4.5 is $5.00/Mtok more expensive than Google: Gemini 2.5 Pro Preview 06-05.

Which to pick

Pick **Claude Sonnet 4.5** for everyday team chat where the answer quality and the conversational shape matter — code review, writing, structured reasoning across a 200k-token window. Sonnet's coding evals lead Gemini 2.5 Pro on most benchmarks and Anthropic's tool-use ergonomics tend to feel cleaner inside multi-turn conversations. Pick **Gemini 2.5 Pro** when you need the 1M-token context (full repos, long PDFs, multi-hour transcripts in one turn) or when input cost is the dominant factor — Gemini Pro's $1.25 per Mtok input is roughly 2.5x cheaper than Sonnet's $3, which adds up fast on long-context bulk work. Output pricing is closer ($10 vs $15 per Mtok), so the savings shrink on chatty multi-turn workloads.
Data last verified 22 hours ago.Sources aggregated hourly to weekly. See docs/architecture/model-directory.md.