AI Models · Open-Source vs Paid

Llama 4 Maverick Open vs INMercury 2.5 Paid

Llama 4 Maverick vs Mercury 2.5 compared — price per token, context window, multimodality, openness and which to choose. Can the open-source model replace the paid one? Full 2026 breakdown.

Prices & specs refreshed from live data · olud.ai

Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.

Llama 4 MaverickOpenMeta
$0.2 /M input
$0.7 /M outputNo per-token fees if you self-host
TypeOpen-weight
Context window1M tokens
MultimodalYes
Self-hostYes
INMercury 2.5PaidInception
$0.04 /M input
$0.15 /M outputManaged API (no infra to run)
TypeProprietary
Context window260K tokens
MultimodalNo
Self-hostNo
Choose Llama 4 Maverick if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose Mercury 2.5 if you want frontier capability through a managed API with zero infrastructure to run.

Llama 4 Maverick vs Mercury 2.5 specs

SpecLlama 4 MaverickMercury 2.5Winner
MakerMetaInception
TypeOpen-weightProprietaryLlama 4 Maverick
Context window1M tokens260K tokensLlama 4 Maverick
Input price$0.2/M · free self-host$0.04/MINMercury 2.5
Output price$0.7/M · free self-host$0.15/MINMercury 2.5
Vision / multimodalYesNoLlama 4 Maverick
Tool / function callingYesYes= Tie
Self-hostableYesNo (API only)Llama 4 Maverick
LicenseLlama CommunityProprietaryLlama 4 Maverick

Price gap & when to choose each

4.7×cheaper per output token

Mercury 2.5 is ~4.7× cheaper than Llama 4 Maverick on output tokens ($0.15 vs $0.7 per M tokens).

Choose Llama 4 Maverick if…
  • You want to self-host or run on your cloud
  • You need the longer 1M context window
  • You prioritize data privacy & control
  • You are building open or reproducible AI
INChoose Mercury 2.5 if…
  • You want frontier performance through a managed API
  • You want the lower output price
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityLlama 4 MaverickMercury 2.5
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: Llama 4 Maverick vs Mercury 2.5

Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).

Llama 4 Maverick
Mercury 2.5
Intelligence index
9.3
Coding index
16.3
Math index
19.3
GPQA
67.1%
MMLU-Pro
80.9%
Humanity's Last Exam
4.9%
Long Context Reasoning
50%
LiveCodeBench
39.7%
SciCode
31.7%
MATH-500
88.9%
AIME
39%
AIME 2025
19.3%
IFBench
43%
τ²-Bench
17.8%
τ-Bench Banking
3.7%
Terminal-Bench
7.9%
Terminal-Bench Hard
6.8%
Speed
96.3 tok/s
Latency
0.57s
Intelligence per $
22

Benchmark data by Artificial Analysis.

How Llama 4 Maverick and Mercury 2.5 score

🏆 Best value & openness: Llama 4 Maverick (5.0 vs 3.0 / 5)
CriterionLlama 4 MaverickMercury 2.5
Cost-efficiency5.05.0
Context window5.04.0
Openness5.01.5
Self-hosting5.01.0
Multimodality5.03.5

Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.

What each model is

Llama 4 Maverick Open

Meta · Open-weight

Llama 4 Maverick 17B Instruct (128E) is a high-capacity multimodal language model from Meta, built on a mixture-of-experts (MoE) architecture with 128 experts and 17 billion active parameters per forward...

Mercury 2.5 Paid

Inception · Proprietary

Mercury 2.5 is the fastest reasoning LLM, and the latest diffusion LLM (dLLM) from Inception. Instead of generating tokens sequentially, Mercury 2.5 produces and refines multiple tokens in parallel, achieving...

Other models in these families

These variants are tracked but not compared here — one page per family keeps the comparison readable.

Other variants tracked
R1 Distill Llama 70BLlama 3.3 70B InstructLlama 3.1 8B InstructLlama 3.1 70B InstructLlama 4 ScoutHermes 3 70B InstructLlama 3.2 3B InstructLlama 3.2 1B InstructAion-RP 1.0 (8B)Hermes 3 405B InstructLlama 3.1 Euryale 70B v2.2Llama 3.3 Euryale 70BLlama Guard 4 12BLlama 3 8B Lunaris

Frequently asked questions

Is Llama 4 Maverick as good as Mercury 2.5?

Llama 4 Maverick is open-weight and competitive on many tasks, but Mercury 2.5 may still lead on the hardest reasoning and agentic work. The gap keeps narrowing — benchmark both on your actual use case before deciding.

Can I run Llama 4 Maverick locally?

Yes. Llama 4 Maverick has open weights, so you can self-host it on your own GPUs or run it via a low-cost API. Mercury 2.5 is API-only and cannot be self-hosted.

Llama 4 Maverick vs Mercury 2.5 — which should I pick in 2026?

Choose Llama 4 Maverick if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose Mercury 2.5 if you want frontier capability through a managed API with zero infrastructure to run.

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