Claude 3.7 Sonnet vs o3 Deep Research
Claude 3.7 Sonnet (2024) and o3 Deep Research (2025) are frontier-tier reasoning models from Anthropic and OpenAI. Claude 3.7 Sonnet ships a 200k-token context window, while o3 Deep Research ships a 200k-token context window. On pricing, Claude 3.7 Sonnet costs $3/1M input tokens versus $10/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Claude 3.7 Sonnet is ~233% cheaper at $3/1M; pay for o3 Deep Research only for vision-heavy evaluation.
Decision scorecard
Local evidence first| Signal | Claude 3.7 Sonnet | o3 Deep Research |
|---|---|---|
| Best for | reasoning-heavy apps, multimodal apps, and tool-calling agents | reasoning-heavy apps, multimodal apps, and tool-calling agents |
| Decision fit | Coding, RAG, and Agents | RAG, Agents, and Long context |
| Context window | 200k | 200k |
| Cheapest output | $15/1M tokens | $40/1M tokens |
| Provider routes | 6 tracked | 2 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- Claude 3.7 Sonnet has the lower cheapest tracked output price at $15/1M tokens.
- Claude 3.7 Sonnet has broader tracked provider coverage for fallback and route flexibility.
- Claude 3.7 Sonnet uniquely exposes Code execution in local model data.
- Local decision data tags Claude 3.7 Sonnet for Coding, RAG, and Agents.
- Local decision data tags o3 Deep Research for RAG, Agents, and Long context.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Claude 3.7 Sonnet
$6,150
Cheapest tracked route/tier: GCP Vertex AI
o3 Deep Research
$18,000
Cheapest tracked route/tier: Vercel AI Gateway
Estimated monthly gap: $11,850. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- No overlapping tracked provider route is sourced for Claude 3.7 Sonnet and o3 Deep Research; plan for SDK, billing, or endpoint changes.
- o3 Deep Research is $25/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Code execution before moving production traffic.
- No overlapping tracked provider route is sourced for o3 Deep Research and Claude 3.7 Sonnet; plan for SDK, billing, or endpoint changes.
- Claude 3.7 Sonnet is $25/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Claude 3.7 Sonnet adds Code execution in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2024-03-04 | 2025-10-10 |
| Context window | 200k | 200k |
| Parameters | — | — |
| Architecture | Decoder Only | Decoder Only |
| License | Proprietary | Proprietary |
| Openness | Proprietary | Proprietary |
| Weights | Not released | Not released |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: conditional | Commercial use: conditional |
| Knowledge cutoff | 2024-11 | 2024-06 |
Pricing and availability
| Pricing attribute | Claude 3.7 Sonnet | o3 Deep Research |
|---|---|---|
| Input price | $3/1M tokens | $10/1M tokens |
| Output price | $15/1M tokens | $40/1M tokens |
| Providers |
Capabilities
| Capability | Claude 3.7 Sonnet | o3 Deep Research |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | Yes | Yes |
| JSON / Tool use | Yes | Yes |
| Structured outputs | Yes | Yes |
| Code execution | Yes | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark scores are currently available for this pair.
Continue comparing
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- Claude 3.7 Sonnet vs DeepSeek V4 Pro
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- Claude 3.7 Sonnet vs Claude Opus 4.5
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Last reviewed: 2026-07-26. Data sourced from public model cards and provider documentation.