Claude 3.5 Sonnet delivers performance superior to Opus and speeds faster than its predecessor, all at the same price point. Its core strengths include: Coding: Autonomously writes, edits, and executes code with advanced reasoning and troubleshooting. Data Science: Augments human expertise by analyzing unstructured data and using multiple tools to generate insights. Visual Processing: Excels at interpreting charts, graphs, and images, accurately transcribing text to derive high-level insights. Agentic Tasks: Exceptional tool use makes it highly effective for complex, multi-step agentic workflows that interact with other systems.
Claude 3.5 Sonnet vs DeepSeek V4 Flash
Compare Claude 3.5 Sonnet from Anthropic and DeepSeek V4 Flash from DeepSeek on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.
DeepSeek V4 Flash 0423 is DeepSeek's efficiency-optimized Mixture-of-Experts text model, designed for fast inference and workflows requiring tool use, function calling, and structured outputs. It features 284B total parameters with 13B activated parameters and supports a 1M-token context window with cost-effective pricing.
Pricing & Specifications
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
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.
Tokens / day
Requests / day
Performance Past 3 Days
Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.
Throughput (tok/s)
TTFT (s)
Uptime (%)
LMArena Benchmarks
LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.
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.
Monthly = daily × 30. Discounted rates applied where a promotion is active.
FAQ
Which is cheaper: Claude 3.5 Sonnet, DeepSeek V4 Flash?
DeepSeek V4 Flash: $0.928/M output tokens; Claude 3.5 Sonnet: $15/M. Use the cost calculator above to estimate your own workload.
How do their coding arena scores compare?
DeepSeek V4 Flash: 1452; Claude 3.5 Sonnet: 1343 (LMArena coding leaderboard).
Which responds faster?
Claude 3.5 Sonnet: 0.6s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.
Which one generates tokens faster?
DeepSeek V4 Flash at 59.0 tok/s and Claude 3.5 Sonnet at 57.2 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 3.5 Sonnet accepts text and image input and supports tool calling, function calling and structured outputs; DeepSeek V4 Flash accepts text input and supports tool calling, function calling and structured outputs.
Can I call Claude 3.5 Sonnet and DeepSeek V4 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.
Popular comparisons
Related model match-ups readers also look at.