Claude Code
Use DeepSeek V4.1 Flash in Claude Code and Codex: tested setup
Run DeepSeek V4.1 Flash in Claude Code and Codex with one SeedRouter key: the exact environment variables and config.toml, and what worked in our test runs.
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Choose a model, estimate the cost, or follow a guide from your first request to a working workflow.
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Compare model capabilities, trade-offs, and alternatives before choosing an API.
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Understand billing units, estimate generation costs, and compare paid and free access.
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Connect your application, send a first request, handle tasks, and troubleshoot common errors.
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Prompting
Write clearer instructions and use references to control image, video, and language model outputs.
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Build repeatable workflows with coding agents, batch generation, and multi-step video projects.
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Check release details, model availability, and what has changed between versions.
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All guides
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DeepSeek V4 Pro
DeepSeek V4.1 Flash vs V4 Pro: price, vision and benchmarks
How DeepSeek V4.1 Flash compares with DeepSeek V4 Pro on price, vision, concurrency and the benchmarks DeepSeek published for each, and which to use for what.
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DeepSeek V4 Flash
DeepSeek V4.1 Flash vs V4 Flash 0731: what changed and why it matters
DeepSeek V4.1 Flash replaced V4 Flash 0731 on September 10, 2026. What changed in architecture, vision, cache and price, and what the old API names run now.
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GPT-6 Astra
GPT-6 API: how to get a key and call Astra, Sol and Luna
Access GPT-6 Astra, Sol and Luna by API: where to get a key, a working request in Python, Node.js and cURL, reasoning effort, streaming, images and errors.
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GPT-6 Astra
GPT-6 API pricing: Astra, Sol and Luna cost per million tokens
What GPT-6 Astra, Sol and Luna cost per million tokens, read live from the rates that bill you, with the cache and long-context rates and the billing formula.
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GPT-6 Astra
GPT-6 Astra vs Sol vs Luna: which GPT-6 model to use
GPT-6 Astra, Sol and Luna side by side: specs, live prices, OpenAI's benchmark results, which effort levels each one accepts, and which one fits your work.
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GPT-6 Astra
GPT-6 vs Claude Opus 5.5: benchmarks, prices and which to use
GPT-6 Astra, Sol and Luna against Claude Opus 5.5: context, effort and prices side by side, what OpenAI and Anthropic reported, and a clear pick for your work.
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GPT-6 Sol
GPT-6 vs GPT-5.6: prices, specs and what changed
GPT-6 Sol and Luna against GPT-5.6 Sol, Terra and Luna: prices, context and cutoffs, the gains OpenAI reports, and the request changes to check before moving.
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Free
Is DeepSeek V4.1 Flash free? Open weights, API costs and credit
DeepSeek V4.1 Flash costs nothing to download, but running it needs big hardware and APIs bill per token. What is free, what is not, and the cheapest way in.
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Free
Is Kimi K3 free? Open weights, API costs and free credit
Kimi K3 costs nothing to download but a lot to run yourself, and APIs bill it per token. What is free, what is not, and how to try it for next to nothing today.
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API
Kimi K3 API: how to get a key and make your first call
Access Kimi K3 by API: where to get a key, a working request in Python, Node.js and cURL, reasoning effort, streaming, image input and the errors to expect.
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Pricing
Kimi K3 API pricing: cost per million tokens, cache and a task
What Kimi K3 costs per million tokens, read live from the rates that bill you, with the cache read and write rates, the billing formula and a cost per task.
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Claude Code
Use Kimi K3 in Claude Code and Codex: setup and tested configs
Run Kimi K3 in Claude Code and Codex with one SeedRouter key: the exact environment variables and config.toml, what worked in our test runs and what to watch.
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Claude Fable 5
Kimi K3 vs Claude Fable 5 and Opus 5.5: price, context and access
How Kimi K3 compares with Claude Fable 5 and Claude Opus 5.5 on price per token, context, output, reasoning, open weights and APIs, and when to pick each one.
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Claude Fable 5.1
Claude Fable 5, Fable 5.1 and Opus 5.5 API pricing: cost per million tokens
API pricing for Claude Fable 5.1, Fable 5 and Opus 5.5 per million tokens, read live from the rates that bill you, with cache rates and the billing formula.
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Claude Fable 5.1
How to use the Claude Fable 5.1 API: model ID, API key and your first request
Get a key, set the model ID and send your first Claude Fable 5.1 API request with the Anthropic or OpenAI SDK. The same steps work for Fable 5 and Opus 5.5.
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Claude Fable 5.1
Use Claude Fable 5.1 and Opus 5.5 in Claude Code with an API key
Point Claude Code at SeedRouter with two environment variables and run Claude Fable 5.1, Fable 5 or Opus 5.5 on per-token billing with prompt cache included.
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Claude Fable 5.1
Claude Fable 5.1 vs Fable 5 vs Opus 5.5: which Claude model to use
Claude Fable 5.1, Fable 5 and Opus 5.5 side by side: specs, live prices, Anthropic benchmark scores, the API changes between them, and which one fits your work.
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Claude Fable 5
Is Claude Fable 5 still available? The suspension, the return, and what it means for API users
Claude Fable 5 was suspended on June 12, 2026 by a US export control directive and restored on July 1. The timeline, its status today and how to call it now.
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Claude Fable 5
Is Claude Fable 5 free? Free plans, trial credit and paid API options
Claude Fable 5 is not free on Claude.ai or the API. What each Claude plan includes, why free API keys are a trap, and how to test Fable 5 with free credit.
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Nano Banana Pro
Is Nano Banana free? What you get without paying
Is Nano Banana free? The Gemini app includes Nano Banana 2 within usage limits, the Gemini API has no free tier for it, and what the paid API costs per image.
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Seedance 2.0
Is Seedance free? What the free options include
Is Seedance free? Dreamina has a free option with credits, the Seedance API is paid per second of video, and what free unlimited Seedance offers really mean.
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Nano Banana Pro
How to use the Nano Banana 2 API: key, request and result
How to use the Nano Banana 2 API: get an API key, send one generateContent request, poll the task for the image URL, edit with references, or use an agent.
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Nano Banana Pro
Nano Banana 2 vs Nano Banana Pro vs Nano Banana 2 Lite: which one to use
Nano Banana 2 vs Nano Banana Pro vs Nano Banana 2 Lite: output sizes, aspect ratios, references and billing compared, with a clear pick for each type of job.
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Nano Banana Pro
Nano Banana API pricing: cost per image by resolution
Nano Banana API pricing per image for Nano Banana 2, Pro and 2 Lite, read live from the rates that bill you, with cost by resolution from 512 to 4K explained.
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Seedance 2.0 Fast
Seedance 2.0 vs Seedance 2.0 Fast vs Seedance 2.0 Mini: which one to use
Seedance 2.0 vs Fast vs Mini: resolutions, price per second, render time and inputs compared side by side, with a clear pick for drafts, social clips, finals.
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Seedance 2.0
Seedance 2.5 vs Seedance 2.0: what changed and when to upgrade
Seedance 2.5 vs Seedance 2.0: 30-second clips, 30 image references and video editing against 4K and lower prices, plus release dates and how to migrate code.
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Seedance 2.0
How to use the Seedance API: key, request, polling and references
How to use the Seedance API for Seedance 2.0 and 2.5: get an API key, send one video task, poll it for the video URL, add references, or let an agent run it.
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Seedance 2.0
Seedance API pricing: cost per second for every model and resolution
Seedance API pricing per second for Seedance 2.0, 2.0 Fast, 2.0 Mini and 2.5, read live from the rates that bill you, with the token formula and estimates.
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Pricing
GPT Image 2.5 API pricing: what one image costs
GPT Image 2.5 API pricing per image for Flare and Sunburst, read live from the rate that bills you. Compare flat and token billing and budget a month of images.
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API
GPT Image 2.5 API in Python: a working example
A working GPT Image 2.5 API example in Python and JavaScript: submit a request, poll the task for image URLs, edit with references, and fix a wrong model ID.
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Flare
GPT Image 2.5 Flare vs Sunburst: which one should you use?
GPT Image 2.5 ships as Flare and Sunburst. Compare speed, edit control and cost, see what changed from GPT Image 2, and pick the right model ID for each job.
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