Anthropic API (Claude) vs Phi-3
- ✦ Claude 3.5 Sonnet/Opus/Haiku
- ✦ 200K context window
- ✦ Vision capabilities
- ✦ Edge deployment
- ✦ On-device inference
- ✦ Open-source (MIT)
Anthropic API (Claude) and Phi-3 are both Large Language Models tools. Compare features, pricing, and ratings below to find the best fit for your team.
When to Choose Anthropic API (Claude) vs Phi-3
The question that matters: “In what situation will I regret choosing A over B after 3 months?”
Streaming surfaces draft summaries in real time; function calling triggers database lookups for context, then a refinement pass enforces tone before posting to channels.
Fine-tune on proprietary codebases and naming patterns. A fintech backend team cut code review cycles 35% after training on 5,000 examples of internal Go microservices.
Safety features scan request/response logs for PII leakage and prompt injection. Vision flags sensitive screenshots in support tickets. Batch API processes 50K logs for $8-12.
Phi-3 Mini quantized to 4-bit runs inference on mobile devices without internet connectivity. Autocomplete and summaries generate 40% faster than API-dependent alternatives.
The 200K context window ingests transcripts and competitor filings together. Function calling extracts guidance ranges, risk factors, and management commentary in one request.
Claude 3.5 Sonnet generates JSON with sentiment, priority, product area, and next steps. Function calling writes results to internal wiki databases - no CSV imports or data entry.
Multi-language capability processes user manuals and chatbot queries directly on embedded hardware. No external API calls eliminates bandwidth costs and network latency.
Quantization compresses from 7B to 2B effective size for resource-constrained hardware. A healthcare provider deployed to 200 clinical workstations with only a 2GB footprint each.
Pricing Comparison & PlansHigh· Verified May 30, 2026
Anthropic API (Claude) Plans
Free tier available
Haiku 4.5
Contact SalesBest for: This model is designed for speed and cost efficiency
- ✓Input: $1.00 per million tokens (MTok)
- ✓Output: $5.00 per million tokens (MTok)
- ✓Fastest and cheapest current-generation model
- ✓Suitable for classification, routing, extraction, and summarization
- ✓Batch API: 50% discount on all token costs for asynchronous workloads
Sonnet 4.6
Contact SalesBest for: Sonnet offers a balance of intelligence and speed, suitable for general purpose tasks
- ✓Input: $3.00 per million tokens (MTok)
- ✓Output: $15.00 per million tokens (MTok)
- ✓Production default model
- ✓Best price-to-quality ratio for general-purpose work
- ✓1 million token context window included at standard pricing
Opus 4.7
Contact SalesBest for: Opus 4.7 is Anthropic's most intelligent model, excelling in complex reasoning and advanced tasks
- ✓Input: $5.00 per million tokens (MTok)
- ✓Output: $25.00 per million tokens (MTok)
- ✓Flagship model with state-of-the-art reasoning
- ✓Enhanced vision capabilities (max 2576px / 3.75MP image resolution)
- ✓1 million token context window included at standard pricing
Opus 4.6
Contact SalesBest for: Opus 4.6 provides high intelligence for demanding tasks requiring deep understanding
- ✓Input: $5.00 per million tokens (MTok)
- ✓Output: $25.00 per million tokens (MTok)
- ✓High-capability model for coding, AI agents, and long-running engineering workflows
- ✓Batch API: 50% discount on all token costs for asynchronous workloads
- ✓Prompt Caching: 90% savings on cached input (10% of standard input cost)
Phi-3 Plans
Free tier available
Phi-3-mini-4k-instruct
Contact SalesBest for: This model requires a custom pricing agreement
- ✓Input: $0.00013 per 1,000 tokens
- ✓Output: $0.00052 per 1,000 tokens
- ✓Context length: 4K tokens
- ✓Pay-As-You-Go offering via Serverless APIs
Phi-3-mini-128k-instruct
Contact SalesBest for: This model requires a custom pricing agreement
- ✓Input: $0.00013 per 1,000 tokens
- ✓Output: $0.00052 per 1,000 tokens
- ✓Context length: 128K tokens
- ✓Pay-As-You-Go offering via Serverless APIs
Phi-3.5-mini-instruct
Contact SalesBest for: This model requires a custom pricing agreement
- ✓Input: $0.00013 per 1,000 tokens
- ✓Output: $0.00052 per 1,000 tokens
- ✓Context length: 128K tokens
- ✓Pay-As-You-Go offering via Serverless APIs
Phi-3-small-8k-instruct
Contact SalesBest for: This model requires a custom pricing agreement
- ✓Input: $0.00015 per 1,000 tokens
- ✓Output: $0.0006 per 1,000 tokens
- ✓Context length: 8K tokens
- ✓Pay-As-You-Go offering via Serverless APIs
Phi-3-small-128k-instruct
Contact SalesBest for: This model requires a custom pricing agreement
- ✓Input: $0.00015 per 1,000 tokens
- ✓Output: $0.0006 per 1,000 tokens
- ✓Context length: 128K tokens
- ✓Pay-As-You-Go offering via Serverless APIs
Phi-3-medium-4k-instruct
Contact SalesBest for: This model requires a custom pricing agreement
- ✓Input: $0.00017 per 1,000 tokens
- ✓Output: $0.00068 per 1,000 tokens
- ✓Context length: 4K tokens
- ✓Pay-As-You-Go offering via Serverless APIs
Phi-3-medium-128k-instruct
Contact SalesBest for: This model requires a custom pricing agreement
- ✓Input: $0.00017 per 1,000 tokens
- ✓Output: $0.00068 per 1,000 tokens
- ✓Context length: 128K tokens
- ✓Pay-As-You-Go offering via Serverless APIs
Open-source. Free to self-host, API pricing via Azure.
Capability Breakdown
17 differences found across 34 standardized features
- •Claude 3.5 Sonnet/Opus/Haiku
- •200K context window
- •Vision capabilities
- •Function calling
- •Streaming
- •Batch API
- •Fine-tuning (coming)
- •Safety features
- •Constitutional AI
- •Tool use
- •JSON mode
- •Enterprise tier
- •Edge deployment
- •On-device inference
- •Open-source (MIT)
- •128K context
- •Code generation
- •Multi-language
- •Fine-tuning
- •Quantization
- •GGUF support
- •Azure integration
- •Local deployment
- •Low memory footprint
- •Fast inference
- •ONNX support
- •Function calling
- •JSON mode
- •System prompts
- •HuggingFace integration
- •Commercial use
- •No GPU required for small variants
- •REST API
- •Streaming API
- •SDK (Python, JS)
- •Batch Processing
Strengths & Limitations
Evaluative strengths and weaknesses: not feature lists
- +Growing user base (500K+)
- +API access for custom integrations
- +AI-powered features built in
- −Stricter content policy can refuse borderline business use cases
- −No native image generation - text and vision only
- +Runs efficiently on-device, enabling offline AI on phones and IoT
- +MIT license allows for commercial use with minimal restrictions
- +Outperforms larger models on key benchmarks (MMLU, GSM8K)
- +Quantized versions run on CPU, removing expensive GPU requirements
- +Optimized for instruction-following with a high-quality training dataset
- −Limited factual knowledge base compared to models trained on trillions of tokens
- −Struggles with complex, multi-step reasoning and niche topics
- −Not designed for extensive, open-ended conversational chat like larger models
- −Smaller context window (4K/128K) than some frontier models
- −Performance highly dependent on quantization and device hardware
At a Glance
Recent Price History
Anthropic API (Claude) updated "Haiku 4.5" from $1/mo to Custom
Price change · May 30, 2026
Anthropic API (Claude) updated "Opus 4.6" from $5/mo to Custom
Price change · May 30, 2026
Anthropic API (Claude) updated "Sonnet 4.6" from $3/mo to Custom
Price change · May 30, 2026
Anthropic API (Claude) updated "Opus 4.7" from $5/mo to Custom
Price change · May 30, 2026
Phi-3 removed the "Azure AI Serverless API" plan
Plan removed · May 30, 2026
Phi-3 removed the "Open Source (Self-Hosted)" plan
Plan removed · May 30, 2026
Phi-3 added a new "Phi-3-medium-128k-instruct" plan (Custom pricing)
Plan added · May 30, 2026
Phi-3 added a new "Phi-3-medium-4k-instruct" plan (Custom pricing)
Plan added · May 30, 2026
Phi-3 added a new "Phi-3-small-128k-instruct" plan (Custom pricing)
Plan added · May 30, 2026
Anthropic API (Claude) added a new "Haiku 4.5" plan at $1/mo
Plan added · May 29, 2026
Frequently Asked Questions
Related Comparisons
Sources & Data Trail · Anthropic API (Claude)
- 1.Official Pricing Page·Source of verified tiers(Checked: 2026-05-30)
- 2.Official Website·Official vendor website
- 3.G2·G2 verified reviews · 4.7/5 · 297 reviews
- 4.Capterra·Capterra verified reviews · 4.6/5
- 5.TrustRadius·TrustRadius verified reviews
Sources & Data Trail · Phi-3
- 1.Official Pricing Page·Source of verified tiers(Checked: 2026-05-30)
- 2.Official Website·Official vendor website
- 3.G2·G2 verified reviews · 4/5
- 4.Capterra·Capterra verified reviews · 4/5