LLM Reference

Gemini 2.5 Flash vs Llama 3 70B Instruct

Gemini 2.5 Flash (2025) and Llama 3 70B Instruct (2024) are compact production models from Google DeepMind and AI at Meta. Gemini 2.5 Flash ships a 1m-token context window, while Llama 3 70B Instruct ships a 8k-token context window. On MMLU PRO, Gemini 2.5 Flash leads by 31.0 pts. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.

Gemini 2.5 Flash fits 125x more tokens; pick it for long-context work and Llama 3 70B Instruct for tighter calls.

Decision scorecard

Local evidence first
SignalGemini 2.5 FlashLlama 3 70B Instruct
Best formultimodal apps, tool-calling agents, and long-context analysisprovider-routed production
Decision fitCoding, RAG, and AgentsCoding, Classification, and JSON / Tool use
Context window1m8k
Cheapest output$2.50/1M tokens$0.40/1M tokens
Provider routes6 tracked18 tracked
Shared benchmarksMMLU PRO leader2 shared

Decision tradeoffs

Choose Gemini 2.5 Flash when...
  • Gemini 2.5 Flash holds a shared-benchmark lead on MMLU PRO, ahead by 31.0 points.
  • Gemini 2.5 Flash has the larger context window for long prompts, retrieval packs, or transcript analysis.
  • Gemini 2.5 Flash uniquely exposes Vision, Multimodal, and JSON / Tool use in local model data.
  • Local decision data tags Gemini 2.5 Flash for Coding, RAG, and Agents.
Choose Llama 3 70B Instruct when...
  • Llama 3 70B Instruct has the lower cheapest tracked output price at $0.40/1M tokens.
  • Llama 3 70B Instruct has broader tracked provider coverage for fallback and route flexibility.
  • Local decision data tags Llama 3 70B Instruct for Coding, 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 3 70B Instruct

Gemini 2.5 Flash

$865

Cheapest tracked route/tier: Google AI Studio

Llama 3 70B Instruct

$420

Cheapest tracked route/tier: Hyperbolic AI Inference

Estimated monthly gap: $445. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.

Switch friction

Gemini 2.5 Flash -> Llama 3 70B Instruct
  • Provider overlap exists on GCP Vertex AI, OpenRouter, and Replicate API; start route-level A/B tests there.
  • Llama 3 70B Instruct is $2.10/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
  • Check replacement coverage for Vision, Multimodal, and JSON / Tool use before moving production traffic.
Llama 3 70B Instruct -> Gemini 2.5 Flash
  • Provider overlap exists on GCP Vertex AI, Replicate API, and OpenRouter; start route-level A/B tests there.
  • Gemini 2.5 Flash is $2.10/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
  • Gemini 2.5 Flash adds Vision, Multimodal, and JSON / Tool use in local capability data.

Specs

Specification
Released2025-06-172024-04-18
Context window1m8k
Parameters—70B
ArchitectureDecoder OnlyDecoder Only
LicenseProprietaryLlama 3 Community
OpennessProprietaryOpen weights
WeightsNot releasedAvailable
CodeUnknownUnknown
Commercial useCommercial use: conditionalCommercial use: conditional
Knowledge cutoff2025-012023-12

Pricing and availability

Pricing attributeGemini 2.5 FlashLlama 3 70B Instruct
Input price$0.30/1M tokens$0.40/1M tokens
Output price$2.50/1M tokens$0.40/1M tokens
Providers
Google AI StudioGCP Vertex AIReplicate APIOpenRouterVercel AI GatewayInceptron
GCP Vertex AIAWS BedrockMicrosoft FoundryNVIDIA NIMDeepInfraOctoAI API (Deprecated)

Capabilities

CapabilityGemini 2.5 FlashLlama 3 70B Instruct
VisionYesNo
MultimodalYesNo
ReasoningNoNo
JSON / Tool useYesNo
Structured outputsYesYes
Code executionYesNo
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

BenchmarkGemini 2.5 FlashLlama 3 70B Instruct
MMLU PRO88.457.4
HumanEval90.172.6

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Last reviewed: 2026-07-11. Data sourced from public model cards and provider documentation.