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Claude Sonnet 5 vs Gemini 3.7 Flash

Compare Claude Sonnet 5 from Anthropic and Gemini 3.7 Flash from Google on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.

AnthropicClaude Sonnet 5GoogleGemini 3.7 Flash
Anthropic logo
Claude Sonnet 5
Anthropic · text, image, pdf → text

Claude Sonnet 5 is the next generation of Anthropic's Sonnet model family. It is a drop-in upgrade for Claude Sonnet 4.6 with three behavior changes: adaptive thinking is on by default, manual extended thinking now returns a 400 error (it was deprecated on Claude Sonnet 4.6), and setting sampling parameters (temperature, top_p, top_k) to non-default values returns a 400 error

Input$2 /M
Output$10 /M
Google logo
Gemini 3.7 Flash
Google · text, image, video, audio, pdf → text

(This model has been officially taken offline; requests to gemini-3.5-flash will now be automatically routed to gemini-3.8-flash.)Gemini 3.7 Flash is Google’s natively multimodal reasoning model for coding, agents, web development, and knowledge work. It supports a 1M-token context window and adjustable thinking levels. Compared with Gemini 3.6 Flash, it improves coding, tool use, multi-step planning, and instruction following.

Input$0.75 /M
Output$3.75 /M
Cache read$0.075 /M

Pricing & Specifications

Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.

Claude Sonnet 5
Gemini 3.7 Flash
Input /M
$2
$0.75
Output /M
$10
$3.75
Cache read /M
-
$0.075
Context length
1,000,000
1,048,576
Max output
128,000
65,536
Time to First Token
1.0 s
13.9 s
Throughput
7839.1 tok/s
69.1 tok/s
Modalities
textimagepdf
textimagevideoaudiopdf
Supported Parameters
thinkingtoolsfunction callingstructured outputs
thinkingtoolsfunction callingstructured outputsweblong context
API Formats
chat_completions · gemini_api · claude_api
chat_completions · gemini_api · claude_api
Released
June 30, 2026
August 13, 2026

Promotional prices show the discounted rate; see each model page for promotion windows.

Activity Past 30 Days

Daily traffic served through AIHubMix — how demand for each model is trending.

claude-sonnet-5gemini-3.7-flash

Tokens / day

-

Requests / day

-

Performance Past 3 Days

Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.

claude-sonnet-5gemini-3.7-flash

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

-

LMArena Benchmarks

LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.

Text
claude-sonnet-5gemini-3.7-flash
14201460150015401580
Overall
14621491
Coding
15211522
Math
14741524
Hard prompts
14901508
Instruction following
14651485
Multi-turn
14721498
Creative writing
14371496
Longer query
14821500
Chinese
14991554
English
14741489
WebDev Arena
claude-sonnet-5gemini-3.7-flash
1480154016001660
Overall
15381587
React
15421581
HTML
15251625
Gaming
15751635
Simulations
15481625
Data analytics
14971569

Source: LMArena (arena.ai) leaderboard, imported by AIHubMix. Models without published ratings are omitted per chart.

Cost calculator

Estimate your monthly bill for the same workload on each model.

Gemini 3.7 Flash
$101 /mo
Claude Sonnet 5
$270 /mo

Monthly = daily × 30. Discounted rates applied where a promotion is active.

FAQ

Which is cheaper: Claude Sonnet 5, Gemini 3.7 Flash?

Gemini 3.7 Flash: $3.75/M output tokens; Claude Sonnet 5: $10/M. Use the cost calculator above to estimate your own workload.

How do their coding arena scores compare?

Gemini 3.7 Flash: 1522; Claude Sonnet 5: 1521 (LMArena coding leaderboard).

Which responds faster?

Claude Sonnet 5: 1.0s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.

How large is each context window?

Claude Sonnet 5 accepts 1,000,000 and Gemini 3.7 Flash accepts 1,048,576 input tokens. Maximum output per request is 128,000 tokens on Claude Sonnet 5 and 65,536 tokens on Gemini 3.7 Flash.

Which one generates tokens faster?

Claude Sonnet 5 at 7839.1 tok/s and Gemini 3.7 Flash at 69.1 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.

What inputs and capabilities does each model support?

Claude Sonnet 5 accepts text, image and PDF input and supports thinking, tool calling, function calling and structured outputs; Gemini 3.7 Flash accepts text, image, video, audio and PDF input and supports thinking, tool calling, function calling, structured outputs, web search and long context.

Can I call Claude Sonnet 5 and Gemini 3.7 Flash with the same API key?

Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.

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