The Atlas · column E ($1–3) · row 3 (128–256K)
GRIDE3 Models at $1–3 per 1M input with 128–256K tokens of context
8 models · 5 creatorsChecked 17 Aug 2026
8 models cost between $1.00 and $2.50 per 1M input tokens and hold 128–256K tokens of context. The cheapest on input is Claude Haiku 4.5 at , tied with 1 other; Grok Build 0.1 has the lowest output price at $2.00. A request that fills each model’s window costs $0.22–$0.68 here, because windows differ within a square.
$1.00
Ask an AI about this pageGChatGPTCClaudePPerplexityGeGeminiXGrok
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Cite this page
ModelsAtlas. “Models at $1–3 per 1M input with 128–256K tokens of context”. Retrieved 17 Aug 2026. https://modelsatlas.com/atlas/e3
Models in E3
Cheapest available standard-tier offer · USD per 1M tokens
| Model | Input | Output | Context | Listed | |
|---|---|---|---|---|---|
| Claude Haiku 4.5Anthropic | $1.00 | $5.00 | 200,000 | batch | Alternatives |
| Grok Build 0.1xAI | $1.00 | $2.00 | 256,000 | — | Alternatives |
| o3 Mini HighOpenAI | $1.10 | $4.40 | 200,000 | — | Alternatives |
| o4 MiniOpenAI | $1.10 | $4.40 | 200,000 | batch | Alternatives |
| o4 Mini HighOpenAI | $1.10 | $4.40 | 200,000 | — | Alternatives |
| Nano Banana Pro (Gemini 3 Pro Image)Google | $2.00 | $12.00 | 131,072 | — | Alternatives |
| o3OpenAI | $2.00 | $8.00 | 200,000 | batch | Alternatives |
| Command ACohere | $2.50 | $10.00 | 256,000 | — | 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
← cheaper11GRIDD3$0.30–1 per 1M input, 128–256K context: Codestral 2508, Command A+ and 9 more.pricier →2GRIDF3$3–10 per 1M input, 128–256K context: Claude Sonnet 4 and Claude Opus 4.5.↓ smaller6GRIDE2$1–3 per 1M input, 32–128K context: Nano Banana 2.1, GPT-5.2 Chat and 4 more.↑ larger11GRIDE4$1–3 per 1M input, 256K–1M context: GPT-5, GPT-5.1 and 9 more.
Questions about square E3
What is the cheapest AI model with 128–256K tokens of context at $1–3 input?
Claude Haiku 4.5 at $1.00 per 1M input tokens and $5.00 output, tied with 1 other. The other 7 in E3: Grok Build 0.1, o3 Mini High, o4 Mini, o4 Mini High, Nano Banana Pro (Gemini 3 Pro Image) and 2 more.
Which E3 model is cheapest for a request that fills its context window?
Claude Haiku 4.5, at about $0.22 for a prompt that fills its 200K window plus its output. The dearest of the 8 is Command A at $0.68. The cheapest list price is not always the cheapest full-window request, because windows differ within a square.
Are any E3 models open-weight?
None of the 8 is marked open-weight in our records.
What does grid reference E3 mean?
E is the price column ($1–3 per 1M input tokens) and 3 is the context row (128–256K). 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 128–256K tokens of context at $1–3 input?
- Which E3 model is cheapest for a request that fills its context window?
- Are any E3 models open-weight?