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Gemini 3.7 Flash vs Claude Opus 4.1

Compare Gemini 3.7 Flash from Google and Claude Opus 4.1 from Anthropic on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.

GoogleGemini 3.7 FlashAnthropicClaude Opus 4.1
Google logo
Gemini 3.7 Flash
Google · text, image, video, audio, pdf → text

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
Anthropic logo
Claude Opus 4.1
Anthropic · text, image → text

Opus 4.1 is an upgraded version of Claude Opus 4, with improvements mainly in agent tasks, practical coding, and reasoning. Compared to Opus 4, there is a slight improvement in software engineering accuracy; Opus 4.1 has higher accuracy at 74.5%.

Input$16.5 /M
Output$82.5 /M

Pricing & Specifications

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

Gemini 3.7 Flash
Claude Opus 4.1
Input /M
$0.75
$16.5
Output /M
$3.75
$82.5
Cache read /M
$0.075
-
Context length
1,048,576
200,000
Max output
65,536
32,000
Time to First Token
5.9 s
1.7 s
Throughput
166.6 tok/s
40.6 tok/s
Modalities
textimagevideoaudiopdf
textimage
Supported Parameters
thinkingtoolsfunction callingstructured outputsweblong context
thinkingtoolsfunction callingstructured outputs
API Formats
chat_completions · gemini_api · claude_api
Released
August 13, 2026
August 5, 2025

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.

gemini-3.7-flashclaude-opus-4-1

Tokens / day

-

Requests / day

-

Performance Past 3 Days

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

gemini-3.7-flashclaude-opus-4-1

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

-

LMArena Benchmarks

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

Text
gemini-3.7-flashclaude-opus-4-1
1400146015201580
Overall
14471491
Coding
15051522
Math
14341524
Hard prompts
14771508
Instruction following
14551485
Multi-turn
14691498
Creative writing
14421496
Longer query
14721500
Chinese
14651554
English
14581489
WebDev Arena
gemini-3.7-flashclaude-opus-4-1
1360144015201600
Overall
13861587
React
15811581
HTML
13931625
Gaming
16351635
Simulations
16251625
Data analytics
15691569

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 Opus 4.1
$2,228 /mo

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

FAQ

Which is cheaper: Gemini 3.7 Flash, Claude Opus 4.1?

Gemini 3.7 Flash: $3.75/M output tokens; Claude Opus 4.1: $82.5/M. Use the cost calculator above to estimate your own workload.

How do their coding arena scores compare?

Gemini 3.7 Flash: 1522; Claude Opus 4.1: 1505 (LMArena coding leaderboard).

Which responds faster?

Claude Opus 4.1: 1.7s 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?

Gemini 3.7 Flash accepts 1,048,576 and Claude Opus 4.1 accepts 200,000 input tokens. Maximum output per request is 65,536 tokens on Gemini 3.7 Flash and 32,000 tokens on Claude Opus 4.1.

Which one generates tokens faster?

Gemini 3.7 Flash at 166.6 tok/s and Claude Opus 4.1 at 40.6 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.

What inputs and capabilities does each model support?

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; Claude Opus 4.1 accepts text and image input and supports thinking, tool calling, function calling and structured outputs.

Can I call Gemini 3.7 Flash and Claude Opus 4.1 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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