Best Code & Reasoning
DeepSeek V4 Pro with Claude Sonnet 4 fallback. The optimal balance of speed, accuracy, and depth for production code generation and complex reasoning tasks. available. 2.0s response times on Cerebras hardware with automatic Groq fallback. Built for latency-sensitive production workloads.
Technical Specifications
Latency
0.3–0.9 seconds P50. DeepSeek V4 Pro is the #1 coding model on SWE-bench with 1M context window. Claude Sonnet 4 provides best-in-class code review and architecture as automatic fallback. in the world. Automatic Groq Llama 3.3 fallback on Cerebras failure.
Models
DeepSeek V4 Pro — 1 million token context window. 88.6% SWE-bench verified. Uncensored output. Primary architecture and coding brain.. Claude Sonnet 4 — Best-in-class code review. Automatic fallback when DeepSeek is unavailable. Security-hardened infrastructure auditing.
Strengths
Python development, full-stack code generation, complex SQL, math/reasoning, logic problems, code review, architecture design, API development, algorithm implementation.
API
OpenAI-compatible endpoint. Drop-in replacement — change one URL. SDK support: Python, Node.js, curl. Streaming responses supported.
Live Benchmark Results
Verified benchmarks run continuously. Updated every hour. View full report →
Competitor Comparison
| Provider | Latency | Price/M tokens | JS Accuracy | SQL Accuracy | Models |
|---|---|---|---|---|---|
| 325 Fast | 0.3–0.9s | $0.009 | 100% | 100% | DeepSeek V4 Pro + Claude Sonnet 4 |
| OpenAI GPT-4o-mini | 0.8–2.1s | $0.15 | 92% | 88% | GPT-4o-mini |
| Claude Haiku 3.5 | 1.2–3.0s | $0.25 | 90% | 85% | Claude Haiku |
| Groq (direct) | 0.5–1.5s | Free* | 89% | 82% | Llama 3.3 70B |
| Together AI | 1.5–4.0s | $0.10 | 85% | 80% | Multiple |
* Groq free tier is rate-limited to 30 req/min. Benchmarks run June 2026.
Quick Start
Start Building With 325 Fast
1,000,000 tokens free on signup. 10M tokens/mo on Pro plan.