GPT-4 Turbo Preview vs Llama 2 7B Chat

GPT-4 Turbo Preview (2023) and Llama 2 7B Chat (2023) are compact production models from OpenAI and AI at Meta. GPT-4 Turbo Preview ships a 128k-token context window, while Llama 2 7B Chat ships a 4k-token context window. On pricing, Llama 2 7B Chat costs $0.05/1M 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.

Llama 2 7B Chat is ~19900% cheaper at $0.05/1M; pay for GPT-4 Turbo Preview only for coding workflow support.

Decision scorecard

Local evidence first
SignalGPT-4 Turbo PreviewLlama 2 7B Chat
Best formultimodal apps and provider-routed productionprovider-routed production
Decision fitCoding, RAG, and AgentsClassification and JSON / Tool use
Context window128k4k
Cheapest output$30/1M tokens$0.25/1M tokens
Provider routes3 tracked10 tracked
Shared benchmarks0 shared0 shared

Decision tradeoffs

Choose GPT-4 Turbo Preview when...
  • GPT-4 Turbo Preview has the larger context window for long prompts, retrieval packs, or transcript analysis.
  • GPT-4 Turbo Preview uniquely exposes Vision and Code execution in local model data.
  • Local decision data tags GPT-4 Turbo Preview for Coding, RAG, and Agents.
Choose Llama 2 7B Chat when...
  • Llama 2 7B Chat has the lower cheapest tracked output price at $0.25/1M tokens.
  • Llama 2 7B Chat has broader tracked provider coverage for fallback and route flexibility.
  • Local decision data tags Llama 2 7B Chat for Classification and JSON / Tool use.

Monthly cost at traffic

Estimate token spend from the cheapest tracked input and output route or tier on this page.

Lower estimate Llama 2 7B Chat

GPT-4 Turbo Preview

$15,500

Cheapest tracked route/tier: OpenAI API

Llama 2 7B Chat

$103

Cheapest tracked route/tier: Replicate API

Estimated monthly gap: $15,398. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.

Switch friction

GPT-4 Turbo Preview -> Llama 2 7B Chat
  • No overlapping tracked provider route is sourced for GPT-4 Turbo Preview and Llama 2 7B Chat; plan for SDK, billing, or endpoint changes.
  • Llama 2 7B Chat is $29.75/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
  • Check replacement coverage for Vision and Code execution before moving production traffic.
Llama 2 7B Chat -> GPT-4 Turbo Preview
  • No overlapping tracked provider route is sourced for Llama 2 7B Chat and GPT-4 Turbo Preview; plan for SDK, billing, or endpoint changes.
  • GPT-4 Turbo Preview is $29.75/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
  • GPT-4 Turbo Preview adds Vision and Code execution in local capability data.

Specs

Specification
Released2023-11-062023-07-18
Context window128k4k
Parameters1.76T (8x222B MoE)*7B
ArchitectureMixture of ExpertsDecoder Only
LicenseProprietaryLlama 2 Community
OpennessProprietaryOpen weights
WeightsNot releasedAvailable
CodeUnknownUnknown
Commercial useCommercial use: conditionalCommercial use: conditional
Knowledge cutoff2023-122022-09

Pricing and availability

Pricing attributeGPT-4 Turbo PreviewLlama 2 7B Chat
Input price$10/1M tokens$0.05/1M tokens
Output price$30/1M tokens$0.25/1M tokens
Providers
OpenAI APIAzure OpenAIOpenRouter
Alibaba Cloud PAI-EASBaseten APIFireworks AIMicrosoft FoundryGCP Vertex AICloudflare Workers AI

Capabilities

CapabilityGPT-4 Turbo PreviewLlama 2 7B Chat
VisionYesNo
MultimodalNoNo
ReasoningNoNo
JSON / Tool useNoNo
Structured outputsYesYes
Code executionYesNo
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

No shared benchmark scores are currently available for this pair.

Continue comparing

Model pages
Labs and families
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Last reviewed: 2026-07-09. Data sourced from public model cards and provider documentation.