PickAIModel.com - Compare Claude Opus 4.8 and Gemini 3.1 Pro
Claude Opus 4.8 vs Gemini 3.1 Pro: pricing, Quality, Value, and benchmarks
Side-by-side buyer comparison built from the current published top 10 snapshot. Quality and Value stay deterministic, while editorial verdict excerpts remain clearly AI-labeled.
Verified evidenceVerified evidence
Claude Opus 4.8 Quality
100.0
Gemini 3.1 Pro Quality
65.8
Quality delta
+34.2Claude Opus 4.8 leads
Value delta
+9.7Claude Opus 4.8 leads
Buyer summary
Claude Opus 4.8 leads Quality by 34.2 points. Claude Opus 4.8 leads Value by 9.7 points.
Shared roster
Both pages link back to the same published roster and methodology, so the comparison stays on one deterministic evidence set.
Claude Opus 4.8 is Anthropic's newest Opus model, strongest for coding, agentic tasks, and complex professional work where the vendor-reported benchmark evidence applies.
Monthly price
Claude Pro: $20/month
App access
Claude
Conversation benchmark
~392 chats
Deterministic
Claude Pro public monthly plan reference.
Deterministic
Claude Opus 4.8 is available in Claude and through the Claude API.
Choose this when you need the highest reasoning ceiling available and can feed it text, images, audio, or video in the same request.
Monthly price
Google AI Pro: $5/month
App access
Gemini
Conversation benchmark
API pricing not published
Verified vendor fact
Consumer plan pricing is grounded in the current official vendor plan page.
Verified vendor fact
Hosted app availability is grounded in the current official vendor surface.
Deterministic scores
Quality and Value comparison
Claude Opus 4.8
Q 100.0
V 42.9
Quality rank 1 and value rank 6 in the current published roster.
Gemini 3.1 Pro
Q 65.8
V 33.2
Quality rank 4 and value rank 9 in the current published roster.
Buyer access
Pricing, app access, and Conversation Value
Claude Opus 4.8
Deterministic3K tokens/chat
Claude Pro: $20/month
~392 chats
Hosted app: Claude
Gemini 3.1 Pro
Verified vendor fact3K tokens/chat
Google AI Pro: $5/month
API pricing not published
Hosted app: Gemini
Benchmark evidence
Claude Opus 4.8
Verified evidence
Humanity's Last Exam
Normalized quality input
49.8%
Anthropic Claude Opus 4.8 release page | Vendor-reported Anthropic Opus 4.8 HLE no-tools score. Do not replace with tools-enabled or adaptive-effort HLE variants.
SWE-Bench Pro
Software engineering task resolution
69.2%
Anthropic Claude Opus 4.8 release page | Vendor-reported Anthropic Opus 4.8 SWE-Bench Pro score. Do not substitute SWE-Bench Verified.
Benchmark evidence
Gemini 3.1 Pro
Verified evidence
Humanity's Last Exam
Normalized quality input
44.4%
Google DeepMind Gemini 3.1 Pro model card | Vendor-reported Google model-card HLE no-tools score. Do not use Scale AI Thinking High for the primary no-tools leaderboard.
SWE-Bench Pro
Software engineering task resolution
54.2%
Google DeepMind Gemini 3.1 Pro model card | Vendor-reported Google model-card SWE-Bench Pro (Public) score. Do not substitute SWE-Bench Verified.
GPQA Diamond
Normalized quality input
94.3%
Google DeepMind Gemini 3.1 Pro comparison table | Vendor-published cross-model comparison table. Treat this as current official evidence, not neutral third-party benchmarking.
MathArena
Expected Performance
64.8%
MathArena models leaderboard | MathArena is shown as supplementary evidence only and is not currently included in the PickAI Quality Score.
Editorial excerpt
Claude Opus 4.8
AI-assisted, editorially reviewed
Claude Opus 4.8 is Anthropic's newest Opus model, strongest for coding, agentic tasks, and complex professional work where the vendor-reported benchmark evidence applies.
Claude Opus 4.8 is under active editorial review. Current public ranking data is limited to accepted source/fact evidence for benchmarks, pricing, and context rather than AI-generated score changes.
Editorial excerpt
Gemini 3.1 Pro
AI-assisted, editorially reviewed
Choose this when you need the highest reasoning ceiling available and can feed it text, images, audio, or video in the same request.
Gemini 3.1 Pro is the ultimate all-in-one creative partner. It does more than chat; it builds. From generating cinematic video and studio-quality music to managing your life through seamless Google Workspace integration, it turns complex tasks into instant results. It is the fastest, most versatile tool for turning ideas into reality without needing a technical degree. True multimodality means it can create stunning video, professional images, and high-fidelity music in seconds. Its massive context window lets it remember entire books or long documents, so you do not have to repeat yourself. It works inside Gmail, Docs, and Drive to automate daily chores. It also delivers high-level reasoning and instant answers without the lag of older models. If you want an AI that acts as a creative studio, personal assistant, and expert researcher all in one subscription, Gemini 3.1 Pro is the gold standard.
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