Claude 3.7 Sonnet vs Claude 3.5 Haiku
Claude 3.7 Sonnet (2024) and Claude 3.5 Haiku (2024) are frontier-tier reasoning models from Anthropic. Claude 3.7 Sonnet ships a 200K-token context window, while Claude 3.5 Haiku ships a 200k-token context window. On pricing, Claude 3.5 Haiku costs $0.8/1M input tokens versus $3/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit. It focuses on practical selection signals rather than broad model-family marketing.
Claude 3.5 Haiku is ~275% cheaper at $0.8/1M; pay for Claude 3.7 Sonnet only for coding workflow support.
Specs
| Specification | ||
|---|---|---|
| Released | 2024-03-04 | 2024-10-22 |
| Context window | 200K | 200k |
| Parameters | — | — |
| Architecture | decoder only | decoder only |
| License | Proprietary | Unknown |
| Knowledge cutoff | 2024-11 | - |
Pricing and availability
| Pricing attribute | Claude 3.7 Sonnet | Claude 3.5 Haiku |
|---|---|---|
| Input price | $3/1M tokens | $0.8/1M tokens |
| Output price | $15/1M tokens | $4/1M tokens |
| Providers |
Capabilities
| Capability | Claude 3.7 Sonnet | Claude 3.5 Haiku |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | No |
| Reasoning | Yes | Yes |
| Function calling | Yes | No |
| Tool use | Yes | No |
| Structured outputs | Yes | Yes |
| Code execution | Yes | Yes |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on multimodal input: Claude 3.7 Sonnet, function calling: Claude 3.7 Sonnet, and tool use: Claude 3.7 Sonnet. Both models share vision, reasoning mode, structured outputs, and code execution, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
For cost, Claude 3.7 Sonnet lists $3/1M input and $15/1M output tokens, while Claude 3.5 Haiku lists $0.8/1M input and $4/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Claude 3.5 Haiku lower by about $4.84 per million blended tokens. Availability is 6 providers versus 5, so concentration risk also matters.
Choose Claude 3.7 Sonnet when coding workflow support and broader provider choice are central to the workload. Choose Claude 3.5 Haiku when coding workflow support and lower input-token cost are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship. This keeps the decision grounded in measurable tradeoffs instead of brand-level assumptions.
FAQ
Which has a larger context window, Claude 3.7 Sonnet or Claude 3.5 Haiku?
Claude 3.7 Sonnet supports 200K tokens, while Claude 3.5 Haiku supports 200k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Claude 3.7 Sonnet or Claude 3.5 Haiku?
Claude 3.5 Haiku is cheaper on tracked token pricing. Claude 3.7 Sonnet costs $3/1M input and $15/1M output tokens. Claude 3.5 Haiku costs $0.8/1M input and $4/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Claude 3.7 Sonnet or Claude 3.5 Haiku open source?
Claude 3.7 Sonnet is listed under Proprietary. Claude 3.5 Haiku is listed under Unknown. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for vision, Claude 3.7 Sonnet or Claude 3.5 Haiku?
Both Claude 3.7 Sonnet and Claude 3.5 Haiku expose vision. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Which is better for multimodal input, Claude 3.7 Sonnet or Claude 3.5 Haiku?
Claude 3.7 Sonnet has the clearer documented multimodal input signal in this comparison. If multimodal input is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Claude 3.7 Sonnet and Claude 3.5 Haiku?
Claude 3.7 Sonnet is available on Snowflake Cortex, GCP Vertex AI, Replicate API, OpenRouter, and AWS Bedrock. Claude 3.5 Haiku is available on Anthropic, OpenRouter, AWS Bedrock, GCP Vertex AI, and Replicate API. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-05-11. Data sourced from public model cards and provider documentation.