GPT-6 Astra vs Inkling

API pricing, context window and capabilities for GPT-6 Astra and Inkling, side by side. Prices are the cheapest listed serving route per 1M tokens, from LiteLLM and OpenRouter.

Verdict

computed from the published numbers

GPT-6 Astra wins on Terminal-Bench, on intelligence and on context window. Inkling wins on price.

Price
Inkling
Terminal-Bench
GPT-6 Astra
Intelligence
GPT-6 Astra
Context window
GPT-6 Astra

Key takeaways

who wins on what, from the published numbers

GPT-6 Astra wins

  • Larger context window (1.1M vs 1M)
  • Higher max output (128K vs 33K)
  • Has web search

Inkling wins

  • Cheaper input ($10.00 vs $0.95 /1M)
  • Cheaper output ($50.00 vs $4.05 /1M)
  • More serving providers (5 vs 6)
Cheaper overall
Inkling
$0.95 + $4.05 /1M
Larger context
GPT-6 Astra
1.1M
More providers
Inkling
6 providers

Pricing & specs

cheapest listed route · per 1M tokens
On-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments can be materially lower.
GPT-6 AstraInkling
Input $/1M$10.00via OpenAI $0.95via DeepInfra best
Output $/1M$50.00via OpenAI $4.05via Baseten best
Context window1.1M best1M
Max output128K best33K
Serving providers5 6 best
DateReleased Sep 4, 2026 Released Jul 16, 2026

Benchmarks

Benchmark scores, side by side
GPT-6 AstraInkling
Intelligence52.7 best25.0
Terminal-Bench88% best55%
GPQA Diamond96% best87%
Output speed61 t/s 186 t/s best
Latency (TTFT)280.05s 1.91s best

Cost calculator

choose a serving route for each side
Input tokens / month
Output tokens / month
GPT-6 Astra
via OpenAI
$100
Inkling
via DeepInfra
$8.80

Capabilities

feature support, side by side
FeatureGPT-6 AstraInkling
Vision✓✓
Tool use✓✓
Reasoning✓✓
Audio——
Prompt caching✓✓
Structured output✓✓
Web search✓—

Related comparisons

Frequently asked questions

Which is cheaper, GPT-6 Astra or Inkling?
Inkling is cheaper for input ($10.00 vs $0.95 per 1M tokens) from DeepInfra. Inkling is cheaper for output ($50.00 vs $4.05 per 1M tokens) from Baseten.
What is the context window difference between GPT-6 Astra and Inkling?
GPT-6 Astra has a 1.1M-token context window and Inkling has 1M tokens, so GPT-6 Astra can take a larger prompt.
How do GPT-6 Astra and Inkling compare on benchmarks?
On the tracked benchmarks, GPT-6 Astra leads on Terminal-Bench, and GPT-6 Astra leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026

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