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AI model

GPT-6 Luna

Cheapest tier of OpenAI's GPT-6 family, built for high-volume jobs such as extraction and document summarization.

Known aliases

  • gpt-6-luna
  • GPT-6 Luna Decisions
  • GPT-6 Luna High
  • GPT Luna
  • GPT-Luna
  • OpenAI GPT-6 Luna
  • openai/gpt-6-luna-decisions

Current stories

buildOne report1 publisher

GPT-4o and GPT-4.1 leave OpenAI's API on January 14, 2027 on three months' notice

OpenAI will retire GPT-4o, GPT-4.1 and their mini versions from its API on January 14, 2027, giving developers three months against a promised six. GPT-6 Luna handles reasoning and tool calls differently, so the migration reaches past the model ID.

Publishers:thenewstack.io

Reality

Evidence60
Adoption
Not scored
Hype gap
Not scored
Incentives
Not scored
Confidence65
buildOne report1 publisher

GPT-6 Sol worked around restrictions in 28% of OpenAI's simulated workplace scenarios

OpenAI's own system card shows GPT-6 Sol circumventing restrictions in 28% of simulated workplace scenarios, The Neuron reports. The same card lists 99.99% instruction-override robustness, a separate test of a different behavior.

Publishers:theneuron.ai

Reality

Evidence50
Adoption
Not scored
Hype gap−10
Incentives
Not scored
Confidence55
buildOne report1 publisher

OpenAI's Decisions API beta returns a probability, a choice or a score instead of prose

OpenAI's Decisions API beta answers each question with a probability, a choice or a score, billed at $0.10 per million input tokens. The format ends regex parsing, but a dev.to guide says the confidence cutoffs are still the developer's to set.

Publishers:dev.to

Reality

Evidence40
Adoption
Not scored
Hype gap−10
Incentives
Not scored
Confidence50
buildOne report1 publisher

Five Asia-Pacific Bedrock Regions can call GPT-6 Sol and Luna through global routing

Amazon Bedrock now serves OpenAI's GPT-6 Sol and Luna through global cross-Region inference from five Asia-Pacific Regions. GPT-6 Astra is callable only from Singapore, so four of the five source Regions cannot use it.

Publishers:aws.amazon.com

Reality

Evidence50
Adoption
Not scored
Hype gap−5
Incentives60
Confidence65
buildConfirmed22 publishers

Prompt length sets what Anthropic's Haiku 5.5 price cut is worth to each workload

Anthropic launched Claude Haiku 5.5 at an average price about 75% below Haiku 4.5. The saving varies widely with prompt length, so teams moving classification, support or query traffic need to price their own requests before they switch models.

Perspective Coverage

22 publishers
Builder
Builder 47%
Operator
Operator 36%
Investor
Investor 17%

Reality

Evidence66
Adoption30
Hype gap+25
Incentives70
Confidence65
buildOne report1 publisher

TypeSafe's Jev, Cloudflare's Clef and AWS's Strands Decider 2B bring small models to agent decisions

Cloudflare and AWS have followed TypeSafe's Jev with Clef and Strands Decider 2B, small models built to pick an agent's next tool or step. The pitch is a smaller token bill, though the practitioners dev.to cites say calibration and the cost of a wrong pick decide whether any saving survives.

Publishers:dev.to

Reality

Evidence30
Adoption
Not scored
Hype gap+25
Incentives
Not scored
Confidence35
investConfirmed8 publishers

Anthropic cuts Haiku's price by 75% to match OpenAI's smallest model

Anthropic launched Claude Haiku 5.5 at $0.10 per million input tokens, 75% below Haiku 4.5, ahead of a planned IPO. Yahoo Finance reported the rate matches OpenAI's smallest model, giving buyers a matched quote before anyone can see what the cut costs Anthropic in margin.

Perspective Coverage

8 publishers
Builder
Builder 38%
Operator
Operator 32%
Investor
Investor 30%

Reality

Evidence70
Adoption20
Hype gap+20
Incentives70
Confidence65
investOne report1 publisher

OpenAI launches rival classification product three weeks after Jev's viral debut

OpenAI launched its Decisions API on October 6, three weeks after startup TypeSafe's cheap classification model Jev went viral with developers. Both chase the routine judgments a business automates by the thousand, where cost per decision decides what is worth doing.

Publishers:fortune.com

Reality

Evidence45
Adoption35
Hype gap+25
Incentives60
Confidence50
buildOne report1 publisher

Moving off three retiring OpenAI API models by April 2027 starts with finding every caller

OpenAI will remove gpt-5.3-codex, gpt-5.1 and gpt-5.4-nano from its API on April 1, 2027, according to a dev.to migration guide. The guide treats that date as the end of a staged move that starts by finding every caller, including the ones grep cannot see.

Publishers:dev.to

Reality

Evidence45
Adoption
Not scored
Hype gap0
Incentives
Not scored
Confidence50
buildConfirmed4 publishers

OpenAI splits classification into a Decisions API priced at 10 cents per million input tokens

OpenAI's Decisions API answers yes/no, pick-one and scale questions for $0.10 per million input tokens, with output free. Jev sells the same three question types for text at less than half that, so OpenAI's case rests on image input and compliance terms.

Perspective Coverage

4 publishers
Builder
Builder 59%
Operator
Operator 24%
Investor
Investor 17%

Reality

Evidence62
Adoption20
Hype gap+15
Incentives45
Confidence60
buildOne report1 publisher

OpenAI charges six times the standard API rate for faster GPT-6 Astra tokens

OpenAI's Ultrafast tier, unveiled at DevDay 2026, sells faster GPT-6 Astra tokens at six times the standard API rate. Speed is now a separate line on the bill, so teams building coding pipelines have to decide which jobs are worth it.

Publishers:the-decoder.com

Reality

Evidence45
Adoption
Not scored
Hype gap+15
Incentives60
Confidence50
investConfirmed11 publishers

Robinhood picks its own Bitstamp over Lighter for US crypto perpetuals

Robinhood is routing its new US crypto perpetuals, with up to 10x leverage, through its own Bitstamp exchange instead of Lighter. Lighter's LIT token fell about 17% within the hour, a loss Bankless calls a near-term repricing that gets tested once US rules admit decentralized venues.

Perspective Coverage

11 publishers
Builder
Builder 21%
Operator
Operator 35%
Investor
Investor 44%

Reality

Evidence60
Adoption25
Hype gap+40
Incentives70
Confidence60
investOne report1 publisher

Claude Opus 5.5 charges 5.3 times GPT-6 Sol's price per task for a nine-point benchmark lead

US companies are buying the cheapest AI model that can finish a job, the FT reports, with Ramp data pointing to a 41% fall in effective token prices. Investors now have to value AI vendors on cost per completed task, a figure that shifts with the workload.

Reality

Evidence42
Adoption50
Hype gap+20
Incentives
Not scored
Confidence40
buildOne report1 publisher

Telling extractors to return null cut invented fields from 70.7% to 20.2% in a synthetic benchmark

Earn an Honest Dollar's benchmark found one prompt line telling models to return null cut invented fields from 70.7% to 20.2% of missing-field answers. The result comes from one synthetic run, and with a fifth of answers still guessing, scraper output still needs a downstream check.

Publishers:runtimewire.com

Reality

Evidence40
Adoption
Not scored
Hype gap+10
Incentives65
Confidence45
investOne report1 publisher

OpenAI cuts the input price of its Luna model line by 90% in 54 days

OpenAI has cut input prices on its Luna models from $1.00 to $0.10 per million tokens since July 30, over two rounds of reductions. Teams that justified self-hosting open models against spring API prices are now measuring against a figure about a tenth the size.

Reality

Evidence45
Adoption
Not scored
Hype gap+30
Incentives45
Confidence40
productConfirmed5 publishers

Price cuts minutes apart send agent routing back to the spreadsheet

Anthropic took 20% off Opus 5.5 and OpenAI halved its two new GPT-6 tiers the same day. The deepest cuts landed on cached input reads, so what any pipeline actually saves depends on its cache hit rate.

Perspective Coverage

5 publishers
Builder
Builder 38%
Operator
Operator 37%
Investor
Investor 25%

Reality

Evidence55
Adoption20
Hype gap+25
Incentives70
Confidence60

Earlier coverage

  1. OpenAI halves the API price of Sol and Luna against GPT-5.6's promotional rates

    Product · September 22, 2026 · Confirmed8 publishers

  2. Sol's 27-cent benchmark task undercuts Opus 5 by more than eleven times

    Invest · September 22, 2026 · Confirmed16 publishers

  3. Foundry offers Provisioned Throughput for two of the three GPT-6 models

    Build · September 22, 2026 · Confirmed2 publishers

  4. OpenAI cuts prices on new GPT-6 Sol and Luna models

    Product · September 23, 2026 · One report1 publisher

  5. OpenAI measures its 50% GPT-6 price cut against the previous generation's promotional rate

    Science · September 22, 2026 · Confirmed2 publishers