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Ongoing case

Frontier model API prices

8 stories since 22 Sep · Ongoing · last update 7 Oct

Readers' interest this week: some · falling

The story so far

Opus 5.5 and Grok 4.7 were released on 22 September; OpenAI cut GPT-6 Sol and Luna API prices, and Cognition cut Devin prices.

Anthropic's Sonnet 5.5, OpenAI's GPT-6.1 Sol and Google's Gemini 4 Argon followed.

Mistral then released Large 4 in public preview.

This summary only repeats what the stories below say.

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What the labels mean From the beginning

  1. 7 Oct

    New model Models and releases Mistral releases Large 4, a 1-trillion-parameter model, in public preview

  2. 1 Oct

    New model Models and releases Google releases Gemini 4 Argon first to trusted cyber defenders

  3. 30 Sep

    New version Models and releases OpenAI releases GPT-6.1 Sol, an upgrade to GPT-6 Sol New version Models and releases Anthropic releases Claude Sonnet 5.5, which it says is faster than Sonnet 5

  4. 29 Sep

    Price change Agents and apps Cognition says Devin is 15 to 70 percent cheaper to use, depending on mode.

  5. 28 Sep

    Price change Models and releases OpenAI cuts GPT-6 Sol and Luna API prices against GPT-5.6 promotional rates

  6. 22 Sep

    New model Models and releases SpaceXAI released Grok 4.7 with a 500k-token context window New modelOur first story Models and releases Anthropic released Claude Opus 5.5 with a 1M-token context window

  7. Our first story
    It began before we started covering it.

What the labels mean

Ordinary updates have no label. Our editor confirms every 'Turning point'.

Our first story
The first story we published about it. The events started earlier.
New model
A model we had not seen before.
New version
An upgrade to a model that already exists.
Built on a model
A product or feature that runs on the models.
Price change
What it costs to use went up or down.
Outside test
Someone other than the maker measured it.
Safety finding
A risk reported by a safety institute, a researcher or the maker.
Rules and courts
A government, regulator or court acted on it.
Retired
A model or service shut down, or given a date to.