API cost decision in 10 seconds

GPT-5.6 Sol Pro (batch) vs Anthropic Claude Haiku Latest

The standard workload cost is tied; choose by context window, provider fit, latency, or model quality.

Page updated:  Data confirmed:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

The standard workload cost is tied; choose by context window, provider fit, latency, or model quality.

Both models are estimated at $3.5 for the standard 1M input plus 500K output workload.

Cost-first pickTie
Context-first pickGPT-5.6 Sol Pro (batch)
Sample savings$00%
10x traffic gap$0

Context-window winner: GPT-5.6 Sol Pro (batch). Cost does not separate this pair on the standard workload, so the next decision point is context window and model behavior.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

The two models stay tied across the input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickGPT-5.6 Sol Pro (batch)Anthropic Claude Haiku Latest
Input-heavy / RAG5M input + 500K outputTie$7.5$7.5
Balanced workload1M input + 1M outputTie$6$6
Output-heavy chatbot1M input + 5M outputTie$26$26
Cheaper input Tie $1 vs $1 / 1M

Both models report the same input price at $1 per 1M tokens.

Cheaper output Tie $5 vs $5 / 1M

Both models report the same output price at $5 per 1M tokens.

Larger context GPT-5.6 Sol Pro (batch) 1.05M vs 200K

GPT-5.6 Sol Pro (batch) has 850K more context (5.25x larger).

Sample workload Tie $3.5 vs $3.5

Both models have the same estimated cost for the standard 1M input plus 500K output workload: $3.5.

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
GPT-5.6 Sol Pro (batch) Calculating… Estimated API cost
Anthropic Claude Haiku Latest Calculating… Estimated API cost
Cheaper for this workload Calculating… Difference: calculating…

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Quick Decision

Verdict

both models tie on input price; both models tie on output price; GPT-5.6 Sol Pro (batch) offers the larger context window. For the 1M input plus 500K output sample, the standard workload cost is tied.

For a 1M input token plus 500K output token workload, the estimated API cost is $3.5 for GPT-5.6 Sol Pro (batch) and $3.5 for Anthropic Claude Haiku Latest.

Best Fit

Choose GPT-5.6 Sol Pro (batch) when you care most about larger context window.

Choose Anthropic Claude Haiku Latest when its provider, model quality, latency, or availability is more important than the numeric price/context winner.

Decision Notes
  • Both models are estimated at $3.5 for the standard 1M input plus 500K output workload.
  • Both models have the same estimated cost for the standard 1M input plus 500K output workload: $3.5.
  • Both models report the same input price at $1 per 1M tokens.
  • Both models report the same output price at $5 per 1M tokens.
  • GPT-5.6 Sol Pro (batch) has 850K more context (5.25x larger).
Head-to-Head Specs
FeatureGPT-5.6 Sol Pro (batch)
(OpenAI)
Anthropic Claude Haiku Latest
(Anthropic)
Input Price
prompt tokens per 1M
$1$1
Completion Price
per 1M tokens
$5$5
Sample Workload Cost
1M input + 500K output
$3.5$3.5
Context Window1.05M200K
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionTieBoth models are estimated at $3.5 for the standard 1M input plus 500K output workload.
High-volume input processingTieLower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsTieLower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workGPT-5.6 Sol Pro (batch)A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps
  • gpt-oss-120b (free) can replace GPT-5.6 Sol Pro (batch) when lower sample workload cost matters most: $0.
  • gpt-oss-20b (free) can replace GPT-5.6 Sol Pro (batch) when lower sample workload cost matters most: $0.
  • gpt-oss-20b can replace GPT-5.6 Sol Pro (batch) when lower sample workload cost matters most: $0.1.
  • gpt-oss-120b can replace GPT-5.6 Sol Pro (batch) when lower sample workload cost matters most: $0.12.

Cheaper alternatives

Review low-cost models sorted by a standard 1M input plus 500K output workload.

Open cheapest models

Larger context alternatives

Find models with larger context windows for RAG, long documents, and codebase review.

Open largest context models

Provider catalogs

Compare models within provider hubs before choosing a final API vendor.

Open provider hubs

OpenAI catalog

Review all tracked OpenAI models before deciding whether this matchup is the right shortlist.

Open OpenAI models

Anthropic catalog

Check other Anthropic models with comparable pricing, context, or release timing.

Open Anthropic models
GPT-5.6 Sol Pro (batch)

GPT-5.6 Sol Pro is the same underlying model as [GPT-5.6 Sol](https://openrouter.ai/openai/gpt-5.6-sol), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode

Anthropic Claude Haiku Latest

This model always redirects to the latest model in the Anthropic Claude Haiku family.