Claude API Family
Use one EvoLink API to access every Claude model. Compare Opus, Sonnet, and Haiku on pricing, context, coding benchmarks, and capabilities — then pick the right model for your workload.
Flagship intelligence
Claude Opus 4.6 is Anthropic's most intelligent model — hybrid reasoning, extended thinking, and 80.8% SWE-bench for the hardest coding and research tasks.
Best balance
Claude Sonnet 4.6 delivers the ideal mix of speed, intelligence, and cost with 128K max output and extended thinking at 40% less than Opus.
Fastest & cheapest
Claude Haiku 4.5 matches Sonnet 4 on coding at $1/$5 per MTok — built for high-volume agents, sub-agents, and free-tier products.
Compare the Claude models
Choose based on your primary constraint: quality, cost, context length, or output size.
| Model | Best for | Input / MTok | Output / MTok | Context | Max output | SWE-bench |
|---|---|---|---|---|---|---|
Claude Opus 4.6 Flagship | Complex coding, agent orchestration, extended thinking, and research synthesis. | $5.00 | $25.00 | 1M | 64K | 80.8% |
Claude Sonnet 4.6 Best Balance | Everyday coding, agentic workflows, and extended thinking at balanced cost. | $3.00 | $15.00 | 1M | 128K | — |
Claude Haiku 4.5 Fastest | High-volume agents, sub-agents, latency-sensitive chat, and free-tier products. | $1.00 | $5.00 | 200K | — | 73.3% |
Claude Sonnet 4.5 Best Coding | Best coding model to date, complex agents, recommended default. | $3.00 | $15.00 | 200K (1M beta) | — | — |
Claude Opus 4.5 Stable | Previous-gen flagship with pinned versioned ID for stable production. | $5.00 | $25.00 | 200K | 64K | — |
Claude Opus 4.1 Agentic | Multi-file refactoring, agentic coding, and deep research analysis. | $15.00 | $75.00 | 200K | — | 74.5% |
Claude Sonnet 4.0 1M Beta | Production workloads with 1M context beta for large documents. | $3.00 | $15.00 | 200K (1M beta) | — | — |
Which Claude model should you choose?
Think of the Claude family as three tiers — Opus for the hardest work, Sonnet for everyday production, and Haiku for speed and scale.
Choose Opus if
Quality and depth matter most
Pick Opus when your tasks require extended thinking, complex multi-step reasoning, agent orchestration, or the highest coding accuracy. Opus 4.6 leads SWE-bench at 80.8% and supports the effort parameter for quality/cost control.
Choose Sonnet if
You need the best everyday model
Sonnet is Anthropic's recommended default. Sonnet 4.6 offers 128K max output (double Opus), extended thinking, and strong coding at $3/$15 per MTok. Sonnet 4.5 is the best coding model to date for agentic workflows.
Choose Haiku if
Speed and cost drive your decisions
Haiku 4.5 matches Sonnet 4 on coding (73.3% SWE-bench) at 3x lower cost. Ideal for parallelized sub-agents, latency-sensitive chat, and free-tier products where every token counts.
Explore each Claude model
Use this page to compare, then visit individual model pages for pricing details, playground access, and integration guides.
Claude Opus 4.6
Complex coding, agent orchestration, extended thinking, and research synthesis.
- Pricing
- $5.00 input / $25.00 output per MTok
- Context
- 1M
- Max output
- 64K
Claude Sonnet 4.6
Everyday coding, agentic workflows, and extended thinking at balanced cost.
- Pricing
- $3.00 input / $15.00 output per MTok
- Context
- 1M
- Max output
- 128K
Claude Haiku 4.5
High-volume agents, sub-agents, latency-sensitive chat, and free-tier products.
- Pricing
- $1.00 input / $5.00 output per MTok
- Context
- 200K
- Max output
- —
Pricing summary
All Claude models use per-token pricing. Prompt caching (0.1x cache reads) and batch processing (50% off) are available across all tiers. EvoLink offers discounted access — see each model page for current EvoLink rates.
Opus tier
$5 / $25 per MTok
Flagship tier — use for complex reasoning, coding, and agent tasks where quality is the priority.
Sonnet tier
$3 / $15 per MTok
Balanced tier — recommended default for most production workloads at 40% less than Opus.
Haiku tier
$1 / $5 per MTok
Speed tier — 5x cheaper than Opus, ideal for high-volume and latency-sensitive applications.
Related Claude guides
Use this page to compare models, then visit guides for pricing details, comparisons, and integration.
Claude API Pricing Guide 2026
Complete pricing breakdown for every Claude model — base rates, caching, batch discounts, and cost optimization tips.
Claude Opus 4.6 vs Gemini 3.1 Pro
Head-to-head comparison of Claude Opus 4.6 and Gemini 3.1 Pro on pricing, benchmarks, context, and capabilities.
GPT-5.4 vs Claude Opus 4.6 vs Gemini 3.1 Pro
Three-way flagship comparison with pricing tables, SWE-bench scores, and decision framework.
Fix Claude 429 Rate Limit Errors
Troubleshooting guide for Claude 429 errors — why they happen and how to fix them with EvoLink routing.
Claude API Family FAQ
Everything you need to know about the product and billing.
Where this page fits
Use this page to compare Claude models and choose a tier. Visit individual model pages for live pricing, playground access, and API integration details. Visit blog guides for pricing breakdowns and cross-provider comparisons.