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FLUX.2 Flex

openrouter/flux-2-flex

Por openrouter · família: flux · lançado 2025-11-25 · data de conhecimento: 2025-06

Desconhecido
Entrada / 1M tokens
Desconhecido
Saída / 1M tokens
67K
Janela de contexto
67K
Saída máxima

Prices in USD per 1M tokens. Unknown means the provider does not publish per-token pricing.

Capacidades

Tool callingRaciocínio? Saída estruturadaAnexosPesos abertosControle de temperatura
Modalidades: entrada image, text · saída image

Model fit scores

0–100 · higher is better

These scores reward declared capabilities, context size, price and provider availability — they are not benchmark results. Use them as a directional signal alongside your own evaluation.

Coding1
  • Tool calling0/40
  • Structured output0/20
  • Reasoning0/10
  • Context window (100K → 1M)0/20
  • Provider availability1/10
Agents16
  • Tool calling0/35
  • Structured output0/25
  • Reasoning0/15
  • Output token limit15/15
  • Provider availability1/10
JSON / structured output10
  • Structured output / JSON mode0/50
  • Tool calling0/20
  • Temperature control10/10
  • Price-friendly for high-volume0/20
Cost efficiency0
  • Has published price0/100
Long context0
  • Context ≥ 100K0/100
Vision63
  • Accepts image input50/50
  • Context window (10K → 1M)12/30
  • Has published price0/10
  • Provider availability1/10
Production-readiness45
  • Number of independent providers5/40
  • Has published per-token price0/20
  • Context window ≥ 8K15/15
  • No data inconsistencies across providers10/10
  • Official model (not derivative)15/15

Cost Efficiency Index

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Estimated cost using the recommended provider's headline rate. Each scenario fixes average input/output tokens — the assumptions are shown in the third column.

This model has no published per-token price, so we can't compute a cost estimate. See the provider's official pricing page for current rates.

Disponível em 1 provedores

ProvedorID do modelo do provedorEntrada / 1MSaída / 1MContextoLançado
OpenRouter
openrouter
black-forest-labs/flux.2-flexUnknownUnknown67K2025-11-25

Frequently asked questions

How much does FLUX.2 Flex cost?

FLUX.2 Flex does not have a publicly published per-token price in our data source. This usually means it is gated behind enterprise sales or invite access. Check openrouter's official pricing page for the most current rates.

What is the context window of FLUX.2 Flex?

FLUX.2 Flex has a context window of 67K tokens, with a max output of 67K tokens per reply. This is the total combined size of prompt + completion.

Does FLUX.2 Flex support tool calling?

No. FLUX.2 Flex does not support tool calling (function calling). If your workflow requires it, look at the /capabilities/tool-calling list for alternatives.

Does FLUX.2 Flex support structured output / JSON mode?

Support for structured output / JSON-schema-constrained decoding is not reported for FLUX.2 Flex in our data source. Verify with openrouter's official documentation before relying on it in production.

Can FLUX.2 Flex accept image input?

Yes. FLUX.2 Flex accepts both text and image input. Vision pricing per image is usually billed on top of the regular token rate — check openrouter's docs for the exact rule.

Is FLUX.2 Flex open-weight?

No. FLUX.2 Flex is a proprietary model — only openrouter (and any approved hosting partners) can serve it. The pricing above reflects the cheapest API access.

What are the best alternatives to FLUX.2 Flex?

If FLUX.2 Flex doesn't fit, consider LFM2.5-1.2B-Instruct (free), LFM2.5-1.2B-Thinking (free), Owl Alpha. Each one targets the same use case — see the Related links below for direct head-to-head pages.

Where does this data come from?

All numbers come from the public models.dev API and are normalised into a single canonical model record. We re-pull daily and write any changes (price, context, capability) to the /changelog page.

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Data is sourced from models.dev and normalized for comparison. Prices and capabilities may change. Always verify critical production decisions with the provider's official documentation.