Claude 3.5 Sonnet vs Llama 3.3 70B Instruct
Claude 3.5 Sonnet (2024) and Llama 3.3 70B Instruct (2025) are frontier reasoning models from Anthropic and AI at Meta. Claude 3.5 Sonnet ships a 200k-token context window, while Llama 3.3 70B Instruct ships a 128k-token context window. On pricing, Llama 3.3 70B Instruct costs $0.72/1M input tokens versus $3/1M 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.
Llama 3.3 70B Instruct is ~317% cheaper at $0.72/1M; pay for Claude 3.5 Sonnet only for coding workflow support.
Decision scorecard
Local evidence first| Signal | Claude 3.5 Sonnet | Llama 3.3 70B Instruct |
|---|---|---|
| Best for | reasoning-heavy apps, multimodal apps, and tool-calling agents | general production evaluation |
| Decision fit | Coding, RAG, and Agents | RAG, Long context, and Classification |
| Context window | 200k | 128k |
| Cheapest output | $15/1M tokens | $0.72/1M tokens |
| Provider routes | 6 tracked | 1 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- Claude 3.5 Sonnet has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Claude 3.5 Sonnet has broader tracked provider coverage for fallback and route flexibility.
- Claude 3.5 Sonnet uniquely exposes Vision, Multimodal, and Reasoning in local model data.
- Local decision data tags Claude 3.5 Sonnet for Coding, RAG, and Agents.
- Llama 3.3 70B Instruct has the lower cheapest tracked output price at $0.72/1M tokens.
- Local decision data tags Llama 3.3 70B Instruct for RAG, Long context, and Classification.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Claude 3.5 Sonnet
$6,150
Cheapest tracked route/tier: GCP Vertex AI
Llama 3.3 70B Instruct
$756
Cheapest tracked route/tier: AWS Bedrock
Estimated monthly gap: $5,394. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on AWS Bedrock; start route-level A/B tests there.
- Llama 3.3 70B Instruct is $14.28/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Vision, Multimodal, and Reasoning before moving production traffic.
- Provider overlap exists on AWS Bedrock; start route-level A/B tests there.
- Claude 3.5 Sonnet is $14.28/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Claude 3.5 Sonnet adds Vision, Multimodal, and Reasoning in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2024-06-20 | 2025-09-01 |
| Context window | 200k | 128k |
| Parameters | 70B | 70B |
| Architecture | Decoder Only | - |
| License | Proprietary | Llama 3 Community |
| Openness | Proprietary | Open weights |
| Weights | Not released | Unknown |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: conditional | Commercial use: conditional |
| Knowledge cutoff | 2024-04 | 2023-12 |
Pricing and availability
| Pricing attribute | Claude 3.5 Sonnet | Llama 3.3 70B Instruct |
|---|---|---|
| Input price | $3/1M tokens | $0.72/1M tokens |
| Output price | $15/1M tokens | $0.72/1M tokens |
| Providers |
Capabilities
| Capability | Claude 3.5 Sonnet | Llama 3.3 70B Instruct |
|---|---|---|
| Vision | Yes | No |
| Multimodal | Yes | No |
| Reasoning | Yes | No |
| JSON / Tool use | Yes | No |
| 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.
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Last reviewed: 2026-10-07. Data sourced from public model cards and provider documentation.