Which is cheaper, Ling 3.1 Flash and GPT-6 Astra?

Ling 3.1 Flash has the lowest input price. Per 1M input tokens: Ling 3.1 Flash from $0.07 and GPT-6 Astra from $10.00.

Which has the larger context window, Ling 3.1 Flash and GPT-6 Astra?

GPT-6 Astra has the largest context window: Ling 3.1 Flash 262,144 tokens and GPT-6 Astra 1,050,000 tokens.

Can I switch between Ling 3.1 Flash and GPT-6 Astra without changing my code?

Yes. All of them are served through FastRouter's OpenAI-compatible API, so switching is a change of the model parameter (inclusionai/ling-3.1-flash, openai/gpt-6-astra).

Ling 3.1 Flash vs GPT-6 Astra

Side-by-side pricing per provider, context window, benchmark scores and speed, all on one OpenAI-compatible API.

Estimate monthly cost for these models

Ling 3.1 Flash inclusionAIinclusionai/ling-3.1-flash

GPT-6 Astra OpenAIopenai/gpt-6-astra

Creator

inclusionAI

OpenAI

Released

Oct 2, 2026

Sep 4, 2026

Context window

262K

1.05M

Input / 1MLowest provider price

$0.07

$10.00

Output / 1MLowest provider price

$0.22

$50.00

Providers

IntelligenceArtificial Analysis index

29.6

54.8

Accepts

Text

Text, Image

Produces

Text

Tool calling

Yes

Structured output

Yes

Reasoning

Yes

Ling 3.1 Flash vs GPT-6 Astra: summary

Ling 3.1 Flash and GPT-6 Astra are both available through FastRouter's OpenAI-compatible API, so switching between them is a change of model id, not a new integration.

Ling 3.1 Flash, from inclusionAI, has a 262,144-token context window, costs $0.07/1M input and $0.22/1M output tokens and scores 29.6 on the Artificial Analysis Intelligence Index.

GPT-6 Astra, from OpenAI, has a 1,050,000-token context window, costs from $10.00/1M input and $50.00/1M output tokens across 2 providers and scores 54.8 on the Artificial Analysis Intelligence Index.

Ling 3.1 Flash is the cheapest on input, 143× cheaper than the next model, GPT-6 Astra has the largest context window and GPT-6 Astra scores highest for intelligence.

Switch with one line

client = OpenAI(base_url="https://api.fastrouter.ai/api/v1", api_key="<FASTROUTER_API_KEY>") client.chat.completions.create(model="inclusionai/ling-3.1-flash", messages=[...]) # or client.chat.completions.create(model="openai/gpt-6-astra", messages=[...])

Full API docs

Frequently asked questions

More comparisons

Benchmark scores sourced from ArtificialAnalysis