The Atlas · column E ($1–3) · row 6 (>1M)
GRIDE6 Models at $1–3 per 1M input with over 1M tokens of context
7 models · 2 creatorsChecked 10 Oct 2026
7 models cost between $1.25 and $2.50 per 1M input tokens and hold over 1M tokens of context. The cheapest on input is Grok 4.20 at , tied with 1 other. A request that fills each model’s window costs $2.14–$2.69 here, because windows differ within a square.
$1.25
observed We measured
- Source
- Our catalogue
- Retrieved
- 17 Aug 2026
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Cite this page
ModelsAtlas. “Models at $1–3 per 1M input with over 1M tokens of context”. Retrieved 10 Oct 2026. https://modelsatlas.com/atlas/e6
Models in E6
Cheapest available standard-tier offer · USD per 1M tokens
| Model | Input | Output | Context | Listed | |
|---|---|---|---|---|---|
| Grok 4.20xAI | $1.25 | $2.50 | 2,000,000 | — | Alternatives |
| Grok 4.20 Multi-AgentxAI | $1.25 | $2.50 | 2,000,000 | — | Alternatives |
| GPT-5.6 SolOpenAI | $2.00 | $10.00 | 1,050,000 | batch | Alternatives |
| GPT-5.6 TerraOpenAI | $2.00 | $12.00 | 1,050,000 | batch | Alternatives |
| GPT-6 SolOpenAI | $2.00 | $10.00 | 1,050,000 | batch | Alternatives |
| GPT-6.1 SolOpenAI | $2.00 | $10.00 | 1,050,000 | batch | Alternatives |
| GPT-5.4OpenAI | $2.50 | $15.00 | 1,050,000 | batch | Alternatives |
What a window-filling request costs here
One prompt that fills the model’s context window plus up to 4,000 output tokens · Σ derived
Arithmetic from the listed standard-tier rates, not a quote; the cheapest list price is not always the cheapest full-window request.
Neighbouring squares
One step cheaper, pricier, smaller or larger
Questions about square E6
What is the cheapest AI model with over 1M tokens of context at $1–3 input?
Grok 4.20 at $1.25 per 1M input tokens and $2.50 output, tied with 1 other. The other 6 in E6: Grok 4.20 Multi-Agent, GPT-5.6 Sol, GPT-5.6 Terra, GPT-6 Sol, GPT-6.1 Sol and 1 more.
Which E6 model is cheapest for a request that fills its context window?
GPT-5.6 Sol, at about $2.14 for a prompt that fills its 1.05M window plus its output. The dearest of the 7 is GPT-5.4 at $2.69. The cheapest list price is not always the cheapest full-window request, because windows differ within a square.
Are any E6 models open-weight?
None of the 7 is marked open-weight in our records.
What does grid reference E6 mean?
E is the price column ($1–3 per 1M input tokens) and 6 is the context row (>1M). Models in the same square are like-for-like on price and context only; the grid says nothing about quality.
Keep going in your AI
Opens with this page as the source. We add nothing else to the prompt.
- What is the cheapest AI model with over 1M tokens of context at $1–3 input?
- Which E6 model is cheapest for a request that fills its context window?
- Are any E6 models open-weight?