Gemini 3.1 Pro Preview vs Claude Sonnet 4.6

Gemini 3.1 Pro Preview from Google and Claude Sonnet 4.6 from Anthropic are shown side by side so you can compare pricing, model IDs, context and output limits, modalities, tool use, release details, and benchmark results where data is available.

Overall Recommendation

Gemini 3.1 Pro Preview is the stronger default, with higher Intelligence and Coding indexes, broader input modalities, and lower token prices. Choose Claude Sonnet 4.6 for a mature Claude-centered production workflow.

Recommendation based on Gemini 3.1 Pro Preview vs Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort).

Comparison Highlights

Gemini 3.1 Pro PreviewGoogle
Claude Sonnet 4.6Anthropic
Best For
Multimodal reasoninggroundingmulti-step tool use
Balanced codingagentsproduction knowledge work
How To Read ItUse-case synthesis from model capabilities and positioning.
Workload Fit
MultimodalAgentsGrounding
CodingAgentsProduction
How To Read ItThe workloads each model is most directly shaped for.
Input
$2/MEdge
$3/M
How To Read ItLower is better when prompts or retrieval payloads are large.
Output
$12/MEdge
$15/M
How To Read ItLower is better for reasoning-heavy or long-generation traffic.
Context length
1M
1M
How To Read ItHigher is better for repositories, retrieval packs, and transcripts.
Input modalities
Audio, Image, PDF, Text, VideoEdge
Image, PDF, Text
How To Read ItBroader input support reduces the need for separate vision or video models.

Model Selection Guide

Gemini 3.1 Pro PreviewGoogle

Choose Gemini 3.1 Pro Preview When

  • A 55.5 Coding Index plus 94.1 GPQA and 44.7 HLE scores in TokenHub
  • $2 input and $12 output per million tokens, with a 1.048M context window
  • The broadest input coverage here: text, image, video, audio, and PDF
Claude Sonnet 4.6Anthropic

Choose Claude Sonnet 4.6 When

  • A 47.2 Intelligence Index and 50.9 Coding Index in TokenHub’s max-effort profile
  • $3 input and $15 output per million tokens
  • A 1M context window, 64K maximum output, and text, image, and PDF input

Basic Information

Gemini 3.1 Pro PreviewGoogle
Claude Sonnet 4.6Anthropic

Name

Gemini 3.1 Pro PreviewGemini 3.1 Pro Preview

Model id

Gemini 3.1 Pro Previewgemini-3.1-pro-preview

Intro

Gemini 3.1 Pro PreviewGemini 3.1 Pro Preview is presented as a reliability-focused refinement of Gemini 3 Pro. Google’s preview notes emphasize better thinking, token efficiency, grounding, factuality, software engineering, agentic tool use, and multi-step execution. The preview label matters: it should be described as an advanced but evolving model for teams testing the next Pro behavior.

Author

Gemini 3.1 Pro PreviewGoogle

Released date

Gemini 3.1 Pro Preview2026-02-19

Context length

Gemini 3.1 Pro Preview1M

Max output tokens

Gemini 3.1 Pro Preview65.5K

Name

Claude Sonnet 4.6Claude Sonnet 4.6

Model id

Claude Sonnet 4.6claude-sonnet-4.6

Intro

Claude Sonnet 4.6Claude Sonnet 4.6 is presented as a broad upgrade for coding, computer use, long-context reasoning, agent planning, knowledge work, and design. Anthropic materials describe it as a strong middle tier with 1M-context beta support and better agent behavior. It is suited to teams that want near-frontier capability with more practical cost and latency than Opus.

Author

Claude Sonnet 4.6Anthropic

Released date

Claude Sonnet 4.62026-02-17

Context length

Claude Sonnet 4.61M

Max output tokens

Claude Sonnet 4.664K

Pricing

Gemini 3.1 Pro PreviewGoogle
Claude Sonnet 4.6Anthropic

Input

Gemini 3.1 Pro Preview$2/M

Output

Gemini 3.1 Pro Preview$12/M

Cached input

Gemini 3.1 Pro Preview$0.2/M

Input

Claude Sonnet 4.6$3/M

Output

Claude Sonnet 4.6$15/M

Cached input

Claude Sonnet 4.6$0.3/M

Capabilities

Gemini 3.1 Pro PreviewGoogle
Claude Sonnet 4.6Anthropic

Reasoning

Gemini 3.1 Pro Preview

Knowledge

Gemini 3.1 Pro Preview2025-01-01

Attachment

Gemini 3.1 Pro Preview

Input modalities

Gemini 3.1 Pro PreviewAudio, Image, PDF, Text, Video

Output modalities

Gemini 3.1 Pro PreviewText

Temperature

Gemini 3.1 Pro Preview

Tool use

Gemini 3.1 Pro Preview

Reasoning

Claude Sonnet 4.6

Knowledge

Claude Sonnet 4.62025-08-31

Attachment

Claude Sonnet 4.6

Input modalities

Claude Sonnet 4.6Image, PDF, Text

Output modalities

Claude Sonnet 4.6Text

Temperature

Claude Sonnet 4.6

Tool use

Claude Sonnet 4.6

Benchmark

Gemini 3.1 Pro PreviewGoogle
Claude Sonnet 4.6Anthropic

Intelligence

46.5

Coding

wins55.5

Intelligence

wins47.2

Coding

50.9

Knowledge & Reasoning

GPQA

wins94.1%

HLE

wins44.7%

GPQA

87.5%

HLE

30%

Coding

SciCode

wins58.9%

Terminal-Bench Hard

wins53.8%

SciCode

46.8%

Terminal-Bench Hard

53.0%

Instruction Following & Agent Tasks

IFBench

wins77.1%

AA-LCR

wins72.7%

Tau2

wins95.6%

IFBench

56.6%

AA-LCR

70.7%

Tau2

75.7%

FAQ

Which model is better, Gemini 3.1 Pro Preview or Claude Sonnet 4.6?

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Gemini 3.1 Pro Preview and Claude Sonnet 4.6 should be compared by workload. This page places price, context, output limits, capabilities, and benchmark data side by side.

Is Claude Sonnet 4.6 cheaper than Gemini 3.1 Pro Preview?

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Use the pricing rows above to compare input, output, and cached input prices for Gemini 3.1 Pro Preview and Claude Sonnet 4.6.

Which model supports a longer context length?

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Gemini 3.1 Pro Preview lists 1M context length, while Claude Sonnet 4.6 lists 1M.

Can I access both models through TokenHub?

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If both models are available in the TokenHub catalog, you can route requests to Gemini 3.1 Pro Preview and Claude Sonnet 4.6 through the TokenHub API.