How OpenAI API compares

GPT-6 Astra (short context)

serverless_api · gpt-6-astra · open-weight not published / unverified

Input / 1M

10developers.openai.comchecked 2026-10-20“gpt-6-astra | Short context input | $10.00”

Cached input / 1M

1developers.openai.comchecked 2026-10-20“gpt-6-astra | Short context cached input | $1.00”

Output / 1M

50developers.openai.comchecked 2026-10-20“gpt-6-astra | Short context output | $50.00”

Context 1,050,000 · tokens/s not published · TTFT not published

Long-context rates on the same page are $20 input, $2 cached, $75 output per 1M tokens.

GPT-6.1 Sol (short context)

serverless_api · gpt-6.1-sol · open-weight not published / unverified

Input / 1M

2developers.openai.comchecked 2026-10-20“gpt-6.1-sol | Short context input | $2.00”

Cached input / 1M

0.1developers.openai.comchecked 2026-10-20“gpt-6.1-sol | Short context cached input | $0.10”

Output / 1M

10developers.openai.comchecked 2026-10-20“gpt-6.1-sol | Short context output | $10.00”

Context 1,050,000 · tokens/s not published · TTFT not published

GPT-6 Luna (short context)

serverless_api · gpt-6-luna · open-weight not published / unverified

Input / 1M

0.1developers.openai.comchecked 2026-10-20“gpt-6-luna | Short context input | $0.10”

Cached input / 1M

0.01developers.openai.comchecked 2026-10-20“gpt-6-luna | Short context cached input | $0.01”

Output / 1M

0.5developers.openai.comchecked 2026-10-20“gpt-6-luna | Short context output | $0.50”

Context 1,050,000 · tokens/s not published · TTFT not published

GPT-6.1 Sol batch (short context)

batch · gpt-6.1-sol · open-weight not published / unverified

Input / 1M

1developers.openai.comchecked 2026-10-20“Batch | gpt-6.1-sol | Short context input | $1.00”

Cached input / 1M

0.05developers.openai.comchecked 2026-10-20“Batch | gpt-6.1-sol | Short context cached input | $0.05”

Output / 1M

5developers.openai.comchecked 2026-10-20“Batch | gpt-6.1-sol | Short context output | $5.00”

Context not published · tokens/s not published · TTFT not published