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Head-to-head comparison

Olmo 3 1025 7B vs Llama 3.1 8B Instruct

Olmo 3 1025 7B (Allen Institute) and Llama 3.1 8B Instruct (Meta) compared on the ModelCap Index, API price, context window, provider availability, weight access and every public benchmark board they share. Figures are the same ones shown on the live rankings; nothing here is a hidden score.

Snapshot as of 22 September 2026

As of 22 September 2026, Olmo 3 1025 7B holds the stronger ModelCap Index position (#218 vs #219); and Olmo 3 1025 7B ships open weights.

Which should you choose?

Choose Olmo 3 1025 7B if…

  • you want the stronger overall ModelCap Index position — #218 against #219 (9.8 vs 8.8 points).
  • you want to self-host: Olmo 3 1025 7B ships open weights while Llama 3.1 8B Instruct is gated access.
  • you want the more recently listed model — Olmo 3 1025 7B was listed 12 September 2025, Llama 3.1 8B Instruct 23 July 2024.

Choose Llama 3.1 8B Instruct if…

  • you want provider choice — 5 listed API providers against 0.

Olmo 3 1025 7B vs Llama 3.1 8B Instruct: specs, pricing and context

Specification comparison of Olmo 3 1025 7B and Llama 3.1 8B Instruct
FieldOlmo 3 1025 7BAllen InstituteLlama 3.1 8B InstructMeta
ModelCap Index position#218#219
Index score9.88.8
EvidenceEstimatedMeasured
Input price / 1M tokensUnlisted$0.05
Output price / 1M tokensUnlisted$0.08
Context window— tokens131K tokens
Max output tokens—118K
API providers listed05
Weight accessOpen weightsGated access
Input modalitiesTextText
First listed12 September 202523 July 2024
PublisherAllen InstituteMeta

Evidence: publisher-corpus-prior over 203 held-out anchors (9%); launch card against 2 resolved peers on 6 rows (91%); exceeds every named peer on 1 of 6 rows; no cross-lab optimism probe available; shrunk 1 up toward the measured corpus · 2 public benchmark observations across 2 boards. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: Olmo 3 1025 7B vs Llama 3.1 8B Instruct

Public benchmark boards where Olmo 3 1025 7B or Llama 3.1 8B Instruct has a published result
BoardOlmo 3 1025 7BLlama 3.1 8B InstructLeads
Arena codingArena (LMArena)—12601252–1267Only one result
BFCL V4UC Berkeley (Gorilla)—25.8PromptOnly one result

Scores are the sources' own published figures for each model's best evaluated configuration; ModelCap never re-runs a benchmark.

Want a different pairing? Open the interactive comparison tool to swap either model for any current ranked language model.

Olmo 3 1025 7B vs Llama 3.1 8B Instruct: common questions

Is Olmo 3 1025 7B better than Llama 3.1 8B Instruct?

Olmo 3 1025 7B ranks higher on the ModelCap Index as of 22 September 2026: #218 against #219. That is a capability ranking built from public benchmark evidence with published uncertainty; whether it is "better" for you also depends on price, context and where you can run it. Their published uncertainty intervals overlap, so the rank difference alone does not establish a reliable capability advantage for your workload.

Is Olmo 3 1025 7B cheaper than Llama 3.1 8B Instruct?

At least one of the two has no listed API price on ModelCap right now, so no price comparison is made.

Which has the bigger context window, Olmo 3 1025 7B or Llama 3.1 8B Instruct?

Both publish a —-token context window.

Which is better for coding, Olmo 3 1025 7B or Llama 3.1 8B Instruct?

The two models do not share a coding benchmark board on ModelCap yet, so no head-to-head coding score is published; the ModelCap Index position is the closest overall signal.

Are Olmo 3 1025 7B and Llama 3.1 8B Instruct open-weight models?

Olmo 3 1025 7B: Open weights. Llama 3.1 8B Instruct: Gated access. Open weights mean the checkpoint can be downloaded and self-hosted under its licence; API-only models are available solely through hosted endpoints.

Where can I run Olmo 3 1025 7B and Llama 3.1 8B Instruct?

ModelCap currently lists 0 API providers for Olmo 3 1025 7B and 5 for Llama 3.1 8B Instruct, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this Olmo 3 1025 7B vs Llama 3.1 8B Instruct comparison?

Every figure comes from the sealed ModelCap dataset published 22 September 2026; the page re-renders within a minute of each data refresh, and the ModelCap Index positions are the same ones shown on the live rankings.

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